Overview of changes between 1.13.4 and 1.13.5
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* Indic shaper improvements.
* Misc fixes.
* Bugs fixed in this release:
	Bug 121672 – Ra (vattu) not rendered properly in Malayalam
	             Patch from LingNing Zhang
	Bug 335811 – Some conjugates of Malayalam are wrong.
	             Patch from LingNing Zhang