Added platform to uniqueID

Examples:
Ubuntu: uniqueId="Ubuntu_12.04-64bit-zlib1g-1:1.2.3.4.dfsg-3ubuntu4"
Fedora: uniqueId="fedora_19-32bit-zlib-devel.i686-1.2.7-10.fc19"
Changed test to check architecture in uniqueID
Changed test to check architecture in uniqueID
Merge branch 'issue64-arch-in-uniqueid' of https://github.com/tnc-ba/swidGenerator into issue64-arch-in-uniqueid

Conflicts:
	tests/test_SwidGenerator.py
Extracted get_os_string to common base class
Merge pull request #6 from tnc-ba/issue64-arch-in-uniqueid

Added platform to uniqueID
implemented first version of file listing for dpkg env.
Added test for full output
Removed filesize from File Payload tag
Added YUM file Payload generation via rpm -ql
Changed file structure. Added sample output dumps from yum

The application now uses relative imports.
To invoke main type:
$ python -m swidGenerator.main
Removed camel case from module name
Removed unnecessary test. Fixed some PEP8 style issues
Added directory listing of /usr/share/man from fedora system
Removed author tag, Changed autodetection to use relative imports, Changed module name swidGenerator to swid_generator
Moved command_args from class level to method, Changed environements to use relative imports
Removed explicit whitespace split ' '
Changed main.py to use relative imports
Changed import to sys
Updated README invoke section