Merge pull request #441 from wosc/master

Provide full instructions how to initialize the wiki git repository
added test for color object
Make assertions a little more expressive
Change Activity API: registeredMembers is now a function, not a direct property access
added tests for the color API
Merge branch 'master' of https://github.com/fhopf/Agora
Extract registeredMembers into Resource object (rather mechanically for the first step)
Fix loading of registeredMembers from Resource
Move member add/remove from Activity to Resource
Use dictionary to store Resources instead of array (allows acces by name)
Merge pull request #442 from fhopf/master

Added some tests for Color and Color API
uebersehen
fixed typo on goodbye
Make modes of Activity construction explicit
add description-tooltip for groups at edit profile

References #98
Change values of exisiting activity object instead of recreating it

Fixes bug that we lose registered memebers when editing the activity.
add description tooltip to map and group list
add missing css
Merge pull request #445 from pongo710/master

add description-tooltip for groups at edit profile
Merge commit '3238a0932e7decf7dc95e8268767ff01c6fd8329'

# By David Schilling
# Via David Schilling (1) and fdeberle (1)
* commit '3238a0932e7decf7dc95e8268767ff01c6fd8329':
  add missing css
  add description tooltip to map and group list
  add description-tooltip for groups at edit profile