bug#5081: zwj should not be ignored in indic text

[Praveen A]

Hi,

ZWJ is required to display some characters (like Malayalam chillu or
pure consonants) in many indic languages (Persian and Arabic also
needs these characters). These should not be ignored while displaying
indic text.

See attachment for an example.

പ്രവീ(ണ്‍) സറുമാ(ന്‍) ഹോഗ്‌വാ(ര്‍)ഡ്സ്

Reference display with gedit is also attached.

- Praveen
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emacs-indic-zwj.png
Description: PNG image

sample-indic-with-ZWJ-gedit.png
Description: PNG image