no wiki icon in group list if wiki is empty
fixed testing issue with undefined value
Merge pull request #785 from janunger/master

minor improvement: no wiki icon in group list if wiki is empty
url-encodes special chars in json strings that are embedded in the HTML, sanitizes some chars from the interestets in the tag cloud
Merge pull request #788 from heisee/master

[tagcloud] url-encodes special chars in json strings that are embedded in the HTML,  sanitizes some chars from the interestets in the tag cloud
Merge pull request #787 from NicoleRauch/master

Minor beautifications.
replace custom "grunt-mocha-istanbul" by official release
"jqcloud" - use non-minified file in Gruntfile as we minify ourselves
"jqcloud" - move css up in our screen.css
integrating jQCloud in the credits file
sort bower deps alphabetically
sort package deps alphabetically
small enhancements in the way the data for the tag cloud is prepared
- trim
- ignoring differences in upper lower case
Merge pull request #789 from leider/master

small enhancements in the way the data for the tag cloud is prepared