Add boost librairy lib & include path to synfig lib & include path.
Fix SYNFIG_LIBS from last commit

Remove boost library lib path from SYNFIG_LIBS.
Fix missing include (was preventing compilation on Fedora 20)
OSX build: Workaround issues of the latest MacPorts.

See http://trac.macports.org/ticket/42434
Also, the latest MacPorts don't allow to build without sudo. Put a warning about that.
Enhancement #559 - Missing strings for translation

Open with history strings
Typo on Menu entry : workscape --> workspace
Fix Enhancement #589  -  Some actions cpp files are not parsed in transiflex
Link to Bone action should replace existing Bone Link.
Rename ValueBase::Type to ValueBase::TypeId
Class 'Type' - type descriptor for ValueBase
Implement all types for ValueBase
Typo
Improve Type
Rewrite ValueBase to work with Type class
Update synfig-core
Update synfig-studio
Fix after rebase
Fix bugs raised after rebase
Weighted Average Converter
Fix bug with opening synfig_icon.sif