`parse_rc` now parse all configuration
Clarified the steps on `CygAptMain.main` method
Fix platform detection for 32 or 64 bit Cygwin

If we're running in Cygwin's python, check sys.maxsize to determine
the Cygwin platform.

If we're running in Windows python, the python platform may not match
the Cygwin platform, so read the PE header of cygwin1.dll to determine
the Cygwin platform.

References:
http://en.wikibooks.org/wiki/X86_Disassembly/Windows_Executable_Files#File_Format
https://github.com/file/file/blob/b3f55f53/magic/Magdir/msdos#L79
Rename FILES to README and add it to the package
Fixed CS

Conflicts:

	src/setup.py
Clean up utils.pe_is_64_bit exceptions

- Raise cygapt.exception.UnexpectedValueException instead of IOError
- Use full pathnames in exception messages
Fixed file location for test