added 0.5.0 release notes
Merge remote-tracking branch 'origin/gh-pages' into gh-pages
5.1 release news
Merge pull request #274 from apmadhani/gh-pages

5.1 release news
0.5.0 released
Merge remote-tracking branch 'origin/gh-pages' into gh-pages
changed docs page version
launched 0.5.0 docs
added fermin as author
Various doc edits.