Update to .gitignore to exclude example executables.
Fixed make throwing error on repeated invokation of make clean, added example executables to clean list.
Filtered out -Werror on compilation of ptest.c (was thowing errors).
Update to .gitignore, added *.dSYM (get's rid of OS X crap)
Update to Makefile, added change notes.
Fixed all compilation warnings for mpc.c and mpc.h. Now compiles successfully on clang with -Werror and myriad warnings invoked (see Makefile for details). Compiles successfully on gcc with -Werror (ptest.c and example code does not, however).
Small update to change notes in Makefile.
Added CHANGELOG.md
Moved changelog to text file.
Reverted to default standard to -ansi. Fixed warnings under compilation against -ansi. Code now builds and tests successfully under -std=c11 and -ansi on both clang (600.0.51) and gcc (4.9.1).
Merge pull request #13 from daltonwoodard/warnings_fix

compilation warnings fix