Modified LLParcelMediaAutoPlay and LLParcelMedia so that it should no longer attempt to create media instances when the media type is set to "none/none".

Also, made LLViewerParcelMedia::getURL() return an empty string when the media type is none/none, which should make the UI better reflect the fact that it won't be loaded.

Reviewed by Callum at http://codereview.lindenlab.com/686010

Reviewed by Mani

- Applied localization to the label string

Reviewed by Mike Antipov in https://codereview.productengine.com/secondlife/r/53/

--HG--
branch : product-engine

We now display custom labels and tooltips for the various
secondlife:///app/agent SLapp suffixes that we support. These include:
/mute, /unmute, /pay, /im, /offerteleport, and /requestfriend. For
example, entering:

secondlife:///app/agent/3e2d81e8-6269-8100-860e-c64e5cee3c2c/mute

Now displays the SLapp in text chat as "Mute <Name>", rather than
simply "<Name>".

Completed normal task EXT-6266 ([EN XUI REWORK] in build menu tab titles -- need 'en' xui xml designer rework for multiple languages)
* Increased max width of tabs from 54 to 100 px to accommodate all tabs' labels.

Note: scroll arrows appear for all locales. Full redesign is required for the Build floater

Reviewed by Vadim Savchuk at https://codereview.productengine.com/secondlife/r/48/

--HG--
branch : product-engine

added my landmarks auto-expansion when new folder gets created EXT-6289 (Clicking the plus button in the Places side panel only lets you add landmarks not folders)

added auto-expanding My landmarks Tab when it is closed and Add folder menu item is clicked

Reviewed by Mike at https://codereview.productengine.com/secondlife/r/10/

--HG--
branch : product-engine

increased width of the "last interaction" text editor to accomodate two japanese hieroglyphs
when 2 digit number is shown

Reviewed by Vadim at https://codereview.productengine.com/secondlife/r/47/

--HG--
branch : product-engine

Fixed normal task EXT-6403 [TRUNCATION] [EN XUI REDESIGN] - Menu Einstellungen, Tab Sound & Medien: Stummschalten, wenn minimiert is truncated
* Increased floater width from 620 to 658 px to accommodate it to checkbox label width.
* Updated "Busy mode response" (on General tab) texteditor and "Always show" & "Never show" lists (on Notifications tab) to be looks better on a wider width.
* Content of other panels was not redesigned.

--HG--
branch : product-engine

--HG--
branch : product-engine

--HG--
branch : product-engine

Fixed normal bug EXT - 6026 ([TRANSLATED BUT IN EN] Side bar : My Appearance > Wearing tab - where it's linked description)

- Replaced hardcoded '(active)' string with [GESLABEL] arg. <string name=\"ActiveGesture\" value=\"[GESLABEL] (TRANSLATION OF 'active')\"/> - this line with translation should be added to the rest locales

- Corrected \"[ATTACHMENT_POINT]\" arg assigning. Now \"[ATTACHMENT_POINT]\" assigned with LLTrans::getString() and gets translated string.

Reviewed by Mike Antipov at https://codereview.productengine.com/secondlife/r/45/

--HG--
branch : product-engine

Reviewed by Vadim at https://codereview.productengine.com/secondlife/r/46/

--HG--
branch : product-engine

Added localization string to the strings.xml for Accessories folder and localization support of Accessories folder from source code (llfolderviewitem.cpp).
<string name=\"InvFolder Accessories\">TRANSLATION TO THE CORRESPONDING LANGUAGE</string>  -- this string should be added to the strings.xml for each locale.

Note: due to Accessories category is created out of viewer & has the FT_NONE type it can not be localized as other protected (system) categories.
 So, hack was provided to check this folder (in a Library) & localize it.

Reviewd by Mike Antipov at https://codereview.productengine.com/secondlife/r/42/

--HG--
branch : product-engine

These calls were added while working on two separate tickets
 - EXT - 6027 ([TRANSLATED BUT IN EN] Bubble shown when you mouseover on system folder within Inventory > Library) (37baa70ea94b)
 - (EXT-6355) [TRANSLATED BUT IN EN] - Inventory, hovertext of system folders: hovertext isn?t localized. (80b6110ba41e)

--HG--
branch : product-engine

fixed EXT-6284 ([HARD CODED] - Menu Einstellungen, Tab Erweitert: "MiddleMouse" needs to be localized)

Control value is preserved, it is being localized on presentation

Reviewed by Richard at https://codereview.productengine.com/secondlife/r/24/

--HG--
branch : product-engine

extracted strings used in LLAppViewer::forceDisconnect(...) calls

Reviewed by Vadim at https://codereview.productengine.com/secondlife/r/41/

--HG--
branch : product-engine

Fixed normal task EXT-6021 	[HARD CODED] Bubble shown when you mouseover on script within Contents is in EN (task inventory)
* Added new string name="PanelContentsTooltip into strings.xml
* Set this tooltip to LLFolderView inside the Build Tool

Note: Fix for localization of default "New Script" name will be fixed in the EXT-5839.

Reviewed by Richard Nelson at https://codereview.productengine.com/secondlife/r/43/

--HG--
branch : product-engine

Added an "init" message in LLPLUGIN_MESSAGE_CLASS_MEDIA, and made LLPluginClassMedia queue it up before initializing its LLPluginProcessParent.
Made all existing plugins send their texture_params message from this init message instead of the LLPLUGIN_MESSAGE_CLASS_BASE "init" message.  (This ensures that they won't start to receive 'size_change' messages until after the init has happened.)
Added "set_user_data_path" and "set_language_code" messages to LLPluginClassMedia.
Made webkit plugin deal with the new messages, when they're sent before it receives the media "init".
Removed the user_data_path and language_code arguments from the init function calls throughout the hierarchy.
Made LLViewerMediaImpl queue up the language code and user data path messages before initializing the media.

Reviewed by Callum at http://codereview.lindenlab.com/687006 .

The movie URLs we were using on movies.apple.com now need to be accessed as trailers.apple.com instead.

linguistic change; fixing floater_about_land.xml button label translation by removing extra ellipses and the label_selected= attribute as they became out of sync with EN file (must have been due to some kind of tool error in the past)