Lint waptrepo/deb/createdeb.py

* sort imports and remove unused errno and platform modules
* two blank lines before def
* wipe some trailing whitespaces
* missing whitespace around operator
* block comment should start with '# ', ie a space after a sharp
* remove blank line at end of file

Code change:

* use an array to define rsync options and ' '.join() them.
Merge pull request #7 from hashar/lint-createdeb

Lint waptrepo/deb/createdeb.py