Fix About [APP_NAME] to read About [SHORT_APP_NAME]
Modernize llradiogroup, allows v3-style attributes: value, label for radio_item; allow_deselect for radio_group.

LLRadioCtrl moves into llradiogroup.cpp
Add "Move to Lost And Found" option for displaced inventory

Inspired by the work of Kitty Barnett
Fixes Issue 1337: Corrupted Inventory
Fixes Issue 1625: Unattainable inventory is Outside of My Inventoy and no options to move back to My Inventory
Fixes Issue 1580: Deleted folders showing outside of inventory folder.
Merge branch 'master' of https://github.com/singularity-viewer/SingularityViewer
If it's not a translation, don't change APP_NAME and related strings in strings.xml
Fix relwithdebug.
Only use LLAvatarJoint when necessary, else LLJoint
Clean up a few harmless compiler warnings (signed/unsigned, double to float)
Fixed some odd initialization oddness in develop.py. Also changed win64 build targetdir to build-vc###-Win64
Use a dynamic buffer for LLMeshHeaderResponder.
Use [SHORT_APP_NAME] xui/de/floater_about.xml as per liru request.
Merge branch 'master' of https://github.com/Lirusaito/SingularityViewer.git