Removed executable permission of some source files
Merge branch 'bugfix' of https://github.com/prasannatsm/dhvani-tts
Add libdhvani.pc.in file, installs libdhvani.pc.

Added libdhvani.pc.in file. Adjusted the build scirpts to generate and
install libdhvani.pc. Applications that use libdhvani can make call
pkg-config to get the information about libdhvani's cflags and libs.
Merge pull request #2 from prasannatsm/master

Add libdhvani.pc.in file to be used by pkg-config. Applications that use libdhvani can query inforfmation about libdhvani using pkg-config