Large refactoring of AmiLib to reduce cut'n'paste code, more robust error

reporting, throw proper exceptions.
Prevent AthFileLits from running AthenaMP mode (PyUtils-00-14-07)

	* python/AmiLib.py
	- Remove commented out code
	* Tagging as PyUtils-00-14-07

2014-12-18 Graeme Stewart <graeme.andrew.stewart@cern.ch>
	* python/AmiLib.py
	- Another big refactoring:
	- badresult improved and now returns a boolean and an error message
	- Rename dry_run to dryrun for consistency
	- Introduce PyUtilsAMIException exception, which now gets thrown
	  consistently if there are problems
	- Consolidate the functions of get_project_of_pkg, get_version_of_pkg
	  and tc_submit_tag._get_projects into single method get_pkg_info
	- Rewrite get_version_of_pkg_with_deps to use module utilities
	- Simplify find_pkg to remove callback function
	* python/scripts/tc_find_pkg.py
	* python/scripts/tc_find_tag.py
	- Embed script in try: except PyUtilsAMIException:
	* python/scripts/tc_show_clients.py
	- Update to get_pkg_info (N.B. Script is still non-functional and disabled)
...
(Long ChangeLog diff - truncated)