mongomeasurement querying by bbox
some track bbox querying stuff
fixes
track querying by bbox
fixed get tracks by bbox
fix for autermann :o
Merge branch 'dev' into querykram

* dev:
  fixed UserNotFoundException for friend test
  fixed #60: 500 in FriendActivities
bounding box class as query parameter
added missing $geometry operator
do not omit exception
removed obsolete methods
methods for filtering measurements/tracks by bbox & tracks/users
get tracks by bbox and user
pagination for bbox queried tracks
more appropiate method names
query measurements by bbox/track/user
Merge branch 'querykram' into dev

* querykram:
  query measurements by bbox/track/user
  more appropiate method names
  pagination for bbox queried tracks
  get tracks by bbox and user
  methods for filtering measurements/tracks by bbox & tracks/users
  removed obsolete methods
  do not omit exception
  added missing $geometry operator
  bounding box class as query parameter
  fix for autermann :o
  fixed get tracks by bbox
  track querying by bbox
  fixes
  some track bbox querying stuff
  mongomeasurement querying by bbox