Add documentation link on the nav bar
Merge pull request #332 from Mchakravartula/issue#262_documentation_navbar

Add documentation link on the nav bar
Fixes #262
Merge branch 'issue#60_slider_size' of https://github.com/Mchakravartula/rockstor-core into Mchakravartula-issue#60_slider_size
Make default slider larger width