couple of test fixes after upgrading to a newer mocha/shoulda

fixes #1738 Puppet Runtime charts look very messed up.

[refactor] - simple method to display ec2 instance name, instead of using tags everywhere

fixes #1765 - changing a conflicting IP address might lead to losing DNS or DHCP records

fixes #1768 Template edition if submit during preview: the patch is saved.

fixes #1767 opera bootstrap transition fixed.

require_nfs_access method should not be a private method.

fixes #1764 changing per_page setting would update only after a restart

this commit changes it back to an area in the code which gets evaluated
everytime instead of upon startup only

[UI] added meta tag headers to support tablet and phone display size correctly

Bug #1763 - new version of mocha breaks testing