Update Gemspec to include license and slightly change description.
add validation for vlan range inputs

Vlan range inputs should be in the format of begin:end
where begin and end are integers between 1 and 4024,
and end is greater than or equal to begin
Use Camel Case for wizard labels
Use e.g. consistently when giving examples in wizard
Merge pull request #233 from mtaylor/ux_improvements2

Ux improvements2
Merge pull request #223 from sseago/vlan-range-validation

add validation for vlan range inputs
Merge pull request #229 from knowncitizen/gemspec_update

Update Gemspec to include license and slightly change description.
Version bump
Version bump
Remove RHEL6 from options for deployment.
Merge pull request #235 from knowncitizen/remove_rhel6

Remove RHEL6 from options for deployment.
Fix error messages for host assignment

This does 2 things for the host assignment error message reporting:
1) changes flash :warning to flash :error:
     This is a real error condition, so users should be properly
     alerted
2) Display the actual error messages to the user rather than burying
   them in logs:
     There are a variety of different conditions that can lead to
     host assignment failing, from UI-fixable stuff around setting
     operating system, etc. params in foreman to lower-level problems
     with DNS, DHCP, etc.

Updated commit resolves the formatting issues
Merge pull request #234 from sseago/unassigned-hosts-error-message

Fix error messages for host assignment
bump versin 0.1.20
Added tabbed menu helper
Move show page content into separate partials
Add sub navigation to deployment show header
Add deployment overview tab pane
Adds Adv Conf Tab and other tab place holders
removed active class from network tab