Update `xntcall` documentation
Update Task Reference Docs

After pylinting, some of these definitions were a bit out of date.
Update pylint.conf

Update lint rules

Update explicit ignores in favor of new lint rules
Use uppercase properties for dictionary value

After using pylint I noticed I should have Xnt also use this for the override
properties dictionary

[http://www.python.org/dev/peps/pep-0008/#constants]
Refactor/ Move Program flow to use `argparse`
Update documentation to reflect option changes
Add build-file specification option
Update documentation about build files
Update documentation to reflect option changes
Merge branch build spec feature -> parsing rewrite

Conflicts:
	docs/source/xenant.rst
Merge branch: parser re-write

Conflicts:
	xnt/commands/target.py
Adjust logging levels
Merge branch 'master' into refactor-logging-levels

Conflicts:
	xnt/version.py
Fix running time printout
Ensure child logging module level is set
Update option help messages
Update Release Notes
Update Release Notes
Add LaTeX build module
Merge branch 'texbuild'