Minor blurb changes, one leftover file, one superflous include
Prevent pulling in stdint.h not to break largefile support on 32 bit linux.

Thanks to James Le Cuirot for reporting.
Fix all -Wall warnings
README update
Prevent success trying to open a zip-based file for writing, allow writing from the stdio wrapper, minor comment fixup
That was missing
Allow libs and headers to be installed via CMake
Create versioned libraries, currently using 0.0.1 for lack of anything better
Add CMake test target