set focus root to true by default for all floaters via floater.xml template
existing calls to setIsChrome will turn off focus root for chrome floaters after initializing it from the focus_root parameter

- Replaced all existing usages of LLDir::getNextFileInDir() with the new directory iterator object.
- Removed platform specific LLDir::getNextFileInDir() implementation.

STORM-720 FIXED Disabled highlighting URLs in inventory items names in the share confirmation dialog.

- When location input control loses focus setting cursor to 0  to show the left edge of the text.

de minimus contribution accepted without CA - Oz Linden

Fix for ER-425: Viewer object cache list gets corrupted when CacheNumberOfRegionsForObjects is exceeded

Pressing Return in Favorites bar overflow menu now acts as mouse double click, i.e. performs teleport to selected landmark.