cleaned up files upload stuff and navigation block
removed logging msg and  link to 'edit' in navigation block
removed some debugging messages
removed debug msg
wikilinks use exact match, search view 'popular' implemented with tagcloud'
fixed dependency issue in socialwikitree
user table now limited to users of current subwiki
fixed exact search on page titles, user profile links, tagcloud rendering for one value
Merge pull request #3 from ntartania/master

updates 01 may 2014