Minor update in setup.py.

Update README.md.

Update links to 0.5.3 in README.md.

Update readme, fix grammar in docs.

Update docs for 0.5.1.

Update readme.txt.

Updated version number to 0.4.2 and re-generated the documentation.

Implemented HwndWrapper#__ne__ to be consistent with HwndWrapper#__eq…

…__. `hwnd1 != hwnd2` and `not hwnd1 == hwnd2` now yield the same results.

 * Fix formatting issues in the History.txt doc

 * Final 0.3.8 changes - and sorting based on importance