Includes:
* DEV-31909 VWR-13251: Revise lscript_library.cpp to allow localization of LSL editor hovertips
* DEV-21938 llSHA1String does not appear where expected in the dropdown "Insert" menu in the LSL editor
* Some cleanup to llerror so that it doesn't depend on llfixedbuffer
* A few misc. server specific changes not related to the texture-pipeline changes (llapp, lloptioninterface)
svn merge -r99446:104838 svn+ssh://svn.lindenlab.com/svn/linden/branches/server/server-1.25
Conflicts resolved by Prospero, except for one scary conflict in
SendConfirmationEmail.php which was resolved by jarv.