break up the tests so that we can maybe  run this on at least one
platform

Add tox integration to run unittests in supported python releases.
Travis-CI is used for test execution.

Additionally, the unittest TestQuotePgIdentifier was updated to support
using assert_raises_regexp on python-2.6.

Sample travis-ci output available at
https://travis-ci.org/ansible/ansible/builds/54189977

https://github.com/ansible/ansible-modules-core/issues/946

Not only match`/docker/`, but also `docker-` followed by a hex-id.

Example (shortened):
```
$ cat /proc/1/cgroup
8:blkio:/system.slice/docker-de73f4d207861cf8757b69213ee67bb234b897a18bea7385964b6ed2d515da94.scope
7:net_cls:/
```

fixed and reintroduced syncronize test, fakerunner object needed become_method to be it's default 'sudo'

Nothing we can do, when it sanitizes ssh_urls it's simply overzealous.

Was using persist_files=True when specifying the create paramater,
which breaks pipelining. Switched to use delete_remote_tmp=False instead,
which is the proper way to preserve the remove tmp dir when running
other modules from the action plugin.

overwrite and not merge hashing
corrected merge vs combined in all pertinent sections
fixed typoe in combined_Vars
removed redundant inventory call, moved grousp to proper priority
readded inventory vars to runner's vars
correclty added inventory this time

removes sycnronize test that does not work with current sudo setup
Fixes #10434