This pull request brings Cytoplasm up from C89 to C99, which makes it much more portable across platforms. In particular, this pull request solves a number of issues with 32-bit platforms.
Closes#28.
Closes#12.
Closes#20.
Reviewed-on: Telodendria/Cytoplasm#29
These are installed to the system and some compilers may not find the
headers in the current directory if we don't do this, even though
according to the C standard, either should work.
