Merge pull request #8 from Mchl/key_contact

Add support for key:contact
Add opening_hours.js library by Dmitry Marakasov from git://github.com/AMDmi3/opening_hours.js.git
Add jquery.dateFormat plugin from git://github.com/phstc/jquery-dateFormat.git
Add support for opening_hours key. Seven nearest 'open' intervals are now displayed in modal window.
Fix unclosed hyperlinks in contacts list
Merge remote branch 'upstream/master'
Opening hours are now displayed in modal window.
Update js/building.js.php

correct "vending_machine"
correct filename for vending machine image
Merge pull request #9 from Mchl/opening_hours

Opening hours
Merge pull request #10 from rem5/patch-1

Update js/building.js.php
Merge remote branch 'remotes/upstream/master'