Various UI fixes

[grtjn]

@jenbreese Can you have a look at my create page changes? You probably need to run bower install or bower update, and deploy modules. I added some popover hints, but moved them to info glyphicons on the side. Firstly because the rich editor didn't allow direct popover, and then I liked the (i) so much, I applied it to all popovers. Some are badly placed though..

[jenbreese]

We are using the glyphicons/fontawesome so we shouldn't delete those.

[grtjn]

The fonts are available inside bower_components. I changed font-path variable in main.less to point to those. Worked well at my end..

[grtjn]

This pull contains a number of generic improvements as well.

• Upgraded all bower components, needed to upgrade bootstrap anyhow, took the effort to get latest from everything
• got rid of local copy of fonts, they are available inside bower_components
• created initial lists for features, techs, domains, and improved autocomplete on these
• improved data_migration
• lots more info popups for fields
• improved form validation and feedback
• added fields for server name and level of accessibility (public/vpn)
• validation of attachment sizes (max 5mb)