Update readme and setup.py to the new, expanded scope of the package.
Change structure and implementation to match new package scope.
Specification mostly unchanged except for a few details
(e.g. return borders rather than top_left + size)
Specification names, comments updated for clarity.
Restructured manual tests for clarity and removed __init__ to keep
manual tests from being considered packages.
Also updated readme with the new code for the TemplateFinder example.
cleanup
fixed mistaken renaming of locate back to locate_in
relocated and renamed factories to keep logical organization with new
test classes being added.
paranoia fix: float() the norming value even though it should be
one in the first place.
Specified and implemented new ProportionalRegion visual investigator.
Simplified to one combined manual example specifically for readme.
Updated readme, setup.py to match latest design and sample code.
Incremented version