replace llinfos, lldebugs, etc with new LL_INFOS(), LL_DEBUGS(), etc.

consolidated most indra-specific constants in llcommon under indra_constants.h
fixed issues with operations on mixed unit types (implicit and explicit)
made LL_INFOS() style macros variadic in order to subsume other logging methods
such as ll_infos
added optional tag output to error recorders

Checker: UNINIT_CTOR
Function: LLPacketBuffer::LLPacketBuffer(const LLHost &, const char *, int)
File: /indra/llmessage/llpacketbuffer.cpp

a fix I like better.

Checker: UNINIT_CTOR
Function: LLPacketBuffer::LLPacketBuffer(const LLHost &, const char *, int)
File: /indra/llmessage/llpacketbuffer.cpp

Still merging from server-1.25... one day I will catch up!

No conflicts

Result of svn merge -r107256:107258 svn+ssh://svn/svn/user/phoenix/license_2009_merge into trunk. QAR-1165

merge viewer_1-21 94770-96059 -> release

Result of svn merge -r71162:71205 svn+ssh://svn/svn/linden/branches/new-license into release. only changes files which are not deployed or the comments section of code.