bug 881946 - update graphite2 library to release 1.2.3. r=jdaggett
Bug 880565 (part 1) - Move isFunction() et al from jsobjinlines.h to jsobj.h and minimize the number of files that #include jsobjinlines.h.  r=benjamin.

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extra : rebase_source : f0d6b1b5825e115b33f2d14c0a6ed9c7ee4ef1ca
Bug 880565 (part 2) - Remove unnecessary #includes in jsobjinlines.h.  r=benjamin.

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extra : rebase_source : 0a447cc5ed0f06ce8f01fdce799660f98b2ff780