Merge branch 'releases/2.1.0' into develop

Ready for 2.0.7 and 2.1.0 releases.
Merge branch 'hotfix/manual-links' into develop
Merge branch 'hotfix/apidocs' into develop
update avatar url for @AlloVince
Merge branch 'hotfix/2.1.0-annc' into develop
Add HTML markup to license page
Fix columns for mobile on composer and pyrus pages
Add more headlines and remove logo in manual

- add more headlines
- remove ZF logo from navigation
- add comments
Corrected typo
Merge branch 'fix/avatarinblog' of git://github.com/samsonasik/zf-web into hotfix/72
Merge branch 'hotfix/72'

Close #72
Merge branch 'feature/responsive-design' of git://github.com/froschdesign/zf-web into hotfix/73
Merge branch 'hotfix/73'

Close #73
Merge branch 'master' of git://github.com/swestcott/zf-web into hotfix/74
Recompile blog

- to pick up typo fix
Merge branch 'hotfix/74'

Close #74