- Added parcel info observer to LLUrlEntryParcel.
- Added notifying LLUrlEntryParcel by LLRemoteParcelInfoProcessor when parcel data arrives.
- Added notifying LLUrlEntryParcel about user login, changing host and viewer connection state to use this data in remote parcel requests.

- After switching to the mouse look mode hide control bar immediately, not fading it with timer

- Added signal for switching mouse look mode out just for convenience. It's not used in this fix.

In the viewer, the region's UUID is acquired very late and isn't generally
used as the canonical region identifier.  The U64 region hash is a better
and more consistently used identifier so I'm moving over to using that as
the region key.  Don't have a proper reserved invalid region hash which is
unfortunate, but then, so much is.

Asset fetch requests wrapped to allow for measurements.
Asset fetch enqueues, dequeues and completion times recorded
to asset stats collector.  Texture fetch operations (http
and udp) recorded to asset stats collector.  Stats collector
time vallue switched from F32 to U64 which is the more common
type in the viewer.  Cross-thread mechanism introduced to
communicate region changes and generate global statistics
messages.  Facility to deliver metrics via Capabilities
sketched in but needs additional work.  Documentation and
diagrams added.

SNOW-352/SNOW-421/SNOW-462 Imported from Snowglobe 2
By Twisted Laws and Thickbrick Sleaford

back-out the back-out for this branch.  yay.

Backing out this merge that I pushed (prematurely) to the wrong place.

removed redundant functionality
moved buildPanel to LLPanel

Changed some uses of cameraCustomizeAvatar as appropriate.

Added AgentPositionSnaps data to ViewerStats to measure frequency and scale of interpolation failures.

EXT-7796 FIXED disabling/enabling presets and camera modes on switching to/from camera customize mode

Reviewed by Neal Orman at https://codereview.productengine.com/secondlife/r/732/

--HG--
branch : product-engine

EXT-7796 FIXED disabling/enabling presets and camera modes on switching to/from camera customize mode

Reviewed by Neal Orman at https://codereview.productengine.com/secondlife/r/732/

--HG--
branch : product-engine

Reviewed by Mike Antipov at https://codereview.productengine.com/secondlife/r/719/

--HG--
branch : product-engine

Added a third visual param group VISUAL_PARAM_GROUP_TWEAKABLE_NO_TRANSMIT
to specify visual params that are user-tweakable, but should not be sent
over the network.

We should have this group *only* for new user-tweakable visual parameters
that should not be sent over the network. These should only be used for
*new* parameters that only contribute to the generation of baked textures.

Code reviewed by Richard

EXT-5808 ADDITIONAL FIX (Add coordinates and parcel settings to top menu bar when nav bar is hidden and flags are set) - fixed Mini-Location panel visibility in mouse look mode

Added code to the LLAgent::endAnimationUpdateUI() which shows/hides Mini-Location panel depending on the mouse look mode and user preferences.

Reviewed by Mike Antipov at https://codereview.productengine.com/secondlife/r/623/

--HG--
branch : product-engine

Fixed llinfos debug line to give more useful information.

Fixed an error in logic - low res textures should be identified by uploadNeeded versus uploadPending.
Also added a llinfos debugging line.

EXT-7626 FIXED LLTexLayer header file cleanup
EXT-7628 FIXED Don't cache lower res baked textures

Added more information into the texture debug view.
Mangled hash when uploading lower res baked textures so they're not cached
Lots of superficial cleanup on lltexlayer and associated classes.  Removed some unused functions and member variables as well.

Final fixes for:
EXT-7209 camera to enter appearance edit mode
EXT-7366 change camera to face front of avatar in previews
EXT-7213 kill old appearance editor

Partial fix for:
EXT-7392 alpha mask checkboxes are not hooked up

All changes code reviewed by vir. Following commits (plus this one) reviewed with this checkin:
425d4e960450
15d04b6464a7
e92ae606de12
adc94512ea9b
24577dbbf7a4
6f28b241eae2

(sorry dessie! :) )

Whitespace change as my last checkin was reviewed and tested to pass.
Avatar baked texture hashing now works across logins and uses the correct
texture indices.

Code reviewed by Vir

First pass at fixing baked texture hashing - unified the hash code to one
function, made sure all messages pass correct texture indices.

Initial code review by Vir

Changed a lot of areas of code that were not dealing with multiwearables properly.
Little functionality changed, as the support mechanisms that were out of date were
subtle, but getting closer to no further areas of code that don't properly support
multi-wearables.

Code reviewed by Vir.

Refactored LLWearableDictionary to look more like LLAssetType/LLFolderType/etc. in terms of code design.  This required a lot of superficial changes across many files.  Overall functionality has not changed.

- Added slide left and Move right buttons to movement actions panel, when inserting them in xml organized buttons in panel into 3 columns to make their position more easily configurable.

- Removed hiding of fly up and down buttons. When not flying(in walk/run mode) they act as jump ans crouch.

- Added movement mode(walk/run/fly) dependent tooltips for fly/jump/crouch and slide buttons.

- Added comment regarding implementation of move floater buttons toggling when user moves via keyboard (because it's not quite obvious and time consuming when you first encounter it) to LLFloaterMove::postBuild().

Reviewed by Vadim Savchuk at https://codereview.productengine.com/secondlife/r/360

--HG--
branch : product-engine

Related to EXT-1655 ([BSI] Always flying after pressing "Stand" to stand up from an object) - disabled forcing of flying at autopilot stops (for "Sit" autopilot behavior).
Reviewed by Tofu Linden at https://codereview.productengine.com/secondlife/r/253/

--HG--
branch : product-engine

Updated the reverted fix for critical bug EXT-1655 ([BSI] Always flying after pressing "Stand" to stand up from an object), also integrated the fix for EXT-6786 ('Stand' button is corrupted if movement control floater is opened). Added some clarifying comments.
Reviewed by Tofu Linden at https://codereview.productengine.com/secondlife/r/253/.

--HG--
branch : product-engine