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

cleaning up build
moved most includes of windows.h to llwin32headers.h to disable min/max macros, etc
streamlined Time class and consolidated functionality in BlockTimer class
llfasttimer is no longer included via llstring.h, so had to add it manually in several places

fixed copy behavior of recordings and accumulator buffers

improvements to predicate API
default rules encapsulated in LLInitParam
removed empty flag from viewer asset stats

added support for specifying predicates for xui and llsd serialization

fixed predicate update logic and reduced to 2 classes

fixed llpredicate so that values and rules work uniformly with predicate logic
and/or/negate works in parallel with set/clear

improved predicate system, added uncertain/unknown predicates

added return value to serialize function to track if any values were written

sanitized param block code to accept isValid and isProvided at any point
added predicates to control serialization

finished most of conversion of llviewerassetstats
ported some param block fixes from viewer-chui
converted viewer asset stats to param block format

moved LLInitParam, and LLRegistry to llcommon
moved LLUIColor, LLTrans, and LLXUIParser to llui
reviewed by Nat

reviewed by Leslie

added Flag as value type
moved Batch to BatchBlock
renamed Choice to ChoiceBlock
made merging of parameters for ValueParams consistent (fillFrom and overwriteFrom are inverses of each other now)
made iteration over Multiple<T> type params easier
initial schema param blocks

Modified viewer window to not create a navigation bar on exit if one doesn't yet exist.

Reviewed by Richard.

EXP-749 FIX [REGRESSION] Voice status indicator shown in IM session instead of profile pic in Basic and Advanced modes

reviewed by Leyla

EXP-648 FIX As a developer, I want to be able to specify param blocks that use Multiple<LLUIImage> for a sequence of images
Factored out param block data classes so that specialized param block types, such as LLUIImage, LLFontGL, LLRect, etc. can be stored in a Multiple<T> context
Converted loading_indicator to take image sequence from XUI
deprecated name-value pairs for LLUIColor values, and put them in colors.xml

Reviwed by Richard.

This way <foo/> or LLSD["foo"]; both define a default constructed value for the parameter named foo, useful in the Multiple<T> case

renamed isProvided() to anyProvided() and fixed partial params (missing mandatory elements) not merging over complete params

fixed deserialization of Multiple<Block> leaving dummy blocks around when failing to find matching key

fixed slicing problem with paramblocks where block descriptors are invalid after copying a derived block type to a base block value.

fixed merging logic for blockvalues like rect, uiimage, etc

fixed merging logic for blockvalues like rect, uiimage, etc

reviewed by Rick

Checker: UNINIT_CTOR
Function: LLInitParam::BaseBlock::BaseBlock()
File: /indra/llxuixml/llinitparam.cpp

reviewed by Rick