This uses the plugin framework to add filter plugins.
The previously hardcoded core filters are defined using the plugin
framework now.

Fixes to the user module

Also fix missing -G on groups change

Lost section from commit 8049777

Conflicts:
	examples/ansible.cfg

+ doc tweak

Make things more reusable, correct some errors along the SSH key path

Conflicts:
	library/user

if a module returns failed in the results, don't fail unless failed is n...

Signed-off-by: Brian Coca <briancoca+ansible@gmail.com>

Improved lookup plugins

Pretty-print "msg" when task fails

Return original string for non-matched vars

Several modules (e.g., pip) return stdout and stderr together in a "msg" variable (and the module development docs seem to suggest that the standard practice is to return status in this variable).

This change ensures that it is printed out with correct formatting (most importantly, with newlines appearing as newlines instead of \n).

Signed-off-by: Brian Coca <briancoca+ansible@gmail.com>

Use default port if ansible_ssh_port is not set for the delegated node

Also add testcase for it.

Requires that inject be passed to run