changed default filter

changed oder filter
changed order of shortlink for project phase
changed order and excluded None Values for order

order_by now excludes items with None in the order field
changed order to sort by project_planning start instead of award_start
change shortlinks generation

shortlinks are now more beatiful and urls are added to url.py
order shortlinks phase projects by their respective phase
Merge pull request #37 from milafrerichs/master

Changed Sidebar links, changed order filter