#7 removed bugged username search feature
+ minor improvement in ajax error handling
#7 added filtrable map of Belgium (Chloropleth)
integrated with urlFilters
todo: add element to let visitors select twittos with no province set
todo: CSS styling
#7 added Belgium mini-map for not set filter
fixed map hover support
map color domain is now updated when filters are activated
#7 improved languages chart display
y axis margin
text labels
various minor changes