[readme] update and add some artwork to readme

Readme jazz up
Add freenode channel
Some minor typos & grammar.
Changelog update
[Rename] Part 3

This takes care of json returns WIMM instead.
[logo-art] add logo in readme.md to resources
Merge branch 'newicon' of https://github.com/uNiversaI/WIMM into feature/clean-up
Change logo URL and clean up white space
Clean up change log formating
Rename the XWMM namespace object to WIMM
Rename XBMC to Kodi
Merge branch 'feature/clean-up'