Fixed segmentation fault.

This fix removes segmentation fault that was introduced because modifying
the source code without understanding it properly.
Merge branch 'master' of https://github.com/prasannatsm/dhvani-tts
Merge pull request #12 from prasannatsm/master

Fix segmentation fault
fixed Error String typo : #16229: "cannot find zlib header"
Merge pull request #14 from 5hanth/master

fix string typo: zlib to GSM compressor
following issue has been fixed

1) fixing coredump issue when concatinating string from ta_parseMiscellaneous()
Merge branch 'upstream_master'