fixing bug #5047
chart is displayed according to group/user filter
fixing bug #5087
setting language before setting bundle
fixing bug #5017
fixing bug #5088
ignoring translations if i18n is not activated (homogenizing with current space behavior)
fixing bug #5047
number of contributions is also related to user/group filter
fixing bug #4929
using Long instead of Integer
Bug #5087 : fixing bundle management problems