Also adds a new unicode integration test

fix an issue that copying directory will fail when trying to change file attributes and the target file already exists on remote

- the issue was introduced by the commit 84759faa

Start of unit tests for split_args function, moved split_args to utils since not needed by modules (so far).

Fixes #8220

Add a lot of tests to verify parsing routines for scenarios that should pass.  Some changes TBD, like stripping command spaces off end of expressions.

* Strip lookup calls out of inventory variables and clean unsafe data
  returned from lookup plugins (CVE-2014-4966)
* Make sure vars don't insert extra parameters into module args and prevent
  duplicate params from superseding previous params (CVE-2014-4967)

Updates to Makefile include:
 * add targets: deb-src, deb-src-upload, deb-upload
 * add variables to control DEB building: DEBUILD_OPTS, DPUT_OPTS, DEB_PPA, DEB_DIST, DEB_RELEASE
 * create deb files for all release values in DEB_DIST

Several updates to packaging/debian/*
 * Updated control file
 * Whitespace/formatting of changelog

Add deb-build to .gitignore