Fix non-thread-safe refcounting of LLHTTPClient::Responder and fix out-of-order deletion of LLTextureFetch on shutdown

By the way, fixed displaying upload cost.

no idea how this ever worked before, as the code since 1.23 has been using the wrong keyword ("everyone_mask" instead of "new_everyone_mask").  I suspect something changed on the sim side?

de minimus contribution accepted without CA - Oz Linden

Remove llfloaterimportcollada

Reviewed by Prep.

Remove LL_MESH_ENABLED macros (fixes drag and drop).  Add mesh stitching type back into tools floater.

Switched off by default for now until Web content ready - turn on with Debug Settings - 'QuickBuyCurrency'
Reviewed by Sam/Richard

Took out enums and flags from LLInventory into LLInventoryDefines
Did a bunch of header file reformatting for LLInventory.h

Change made to simulator files as well.

reviewed by Richard CC# 167

- Moved hardcoded strings in LLFloaterBuyCurrency::buyCurrency() calls to strings.xml

Reviewed by Vadim Savchuk https://codereview.productengine.com/secondlife/r/56/

--HG--
branch : product-engine

- Moved hardcoded strings in LLFloaterBuyCurrency::buyCurrency() calls to strings.xml

Reviewed by Vadim Savchuk at https://codereview.productengine.com/secondlife/r/33/

--HG--
branch : product-engine

--HG--
branch : product-engine

Changed logic for getActiveInventory so that it considers InventorySP.
Removed getActiveInventory and replaced with getActiveInventoryPanel since that follows its current usage.
This currently contains a bug because the InventorySP always thinks it's open.

--HG--
branch : avatar-pipeline

Cuts number of includes of llnotifications.h from 300+ to 40.

Fixed many more includes

Removed unnecessary "#include llinventorymodel.h" now that llinventoryobserver was split from llinventorymodel.

--HG--
branch : avatar-pipeline

Changed variable price upload responders to reflect server changes.  I hope this gets pulled into the hg repository

svn merge -r136068:136089   svn+ssh://svn.lindenlab.com/svn/linden/branches/avatar-pipeline/folder-types__merge__viewer2.0.0-3-r135948 into svn+ssh://svn.lindenlab.com/svn/linden/branches/viewer/viewer-2.0.0-3

Infrastructure changes for cleaning up Asset/Folder types.  Associated sim changes are only so that the sim still compiles.