Guard against undefined contracting authority
Bold form labels. #38
Disable editing interfaces (e.g., date picker) for viewing contracts
Fixed test and IE login page

Servlet test was disabled
Encoding fixes

Flash messages added, POST encoding fixed, login after enter click fixed
Terminology and help texts update
Header links and translations fixes
More header fixes
More i18n
Remove optional description for registration fields
Invitation fixes
Merge remote-tracking branch 'origin/develop'