Reviewed by davep.

SH-2565 Move resetVertexBuffer operation to a consistent location (also avoid redundant resetting of vertex buffers on detail switches).  Change assertion to a warning with count info.  Fix bytes pooled debug display.  Remove unused static vertex buffer.

SH-2791 Use request class constructor/destructor for keeping track of concurrent requests instead of unreliable increments/decrements sprinkled around the code.

SH-1427 Fix for spot lights not working properly on alpha objects, and fix for alpha lighting of point lights not matching deferred lights.

Reviewed by davep.

SH-2794 Fix for bad textures on some hardware when vbo mapping disabled (always use GL_STREAM_DRAW as the usage hint when mapping is disabled as geometry will be uploaded again and again)

SH-2598 Fix for crash when rendering mesh silhouette (workaround driver bug by rendering from client memory instead of using face VBO).

Tweaked offset and missed a corner case

made assert match actual error condition for list iterators

reviewed by Leslie

EXP-1525 FIXED Potential fix for a crash at shutdown: added some error handling to saving inventory cache.

Backed out changeset: 4f3024e9d629

[I18N] [INCORRECT CURRENCY LAYOUT/FORMAT] - Currency in
 Group Profile > Land/Asset and New Group (French viewer)
Backed out changeset: c01a6186b15c

fix for SH-2829: [crashhunters] Crash in LLWearable::importFile()/LLOverrideBakedTextureUpdate::LLOverrideBakedTextureUpdate()

* Fixed build window to not fail assert at construction time.

fix for SH-2823 and SH-2824: crash in curl: LLBufferArray::countAfter() and LLBufferArray::copyIntoBuffers
reviewed by vir

- Got rid of confusing conditions.

fixed case where adding text between 2 consecutive newlines created gibberish