Updates to cmdline arguments, first parts of cli()
Typos
Command line options
Reference area and search area
Tests for parse_enhancements, added assertDictEqual
Added parser for image enhancement info, matplotlib based area selector
Fixes to _update_min() and _update_max()
Removed incorrectly placed self._to_numpy()s, _blur2 replaced by a working version, _blur2 used as default blur and as gradient background, argument passing stuff fixed (needs more fixing!), placeholder for _rotate()