fix id on return trip checkbox call
remove unnecessary datepicker actions in trips.js
Merge pull request #29 from CG-CamSys/105-no-results-for-no-return-trip

fix id on return trip checkbox call
Merge branch 'cgdevelop' into 95-datepicker-fix
Merge pull request #30 from CG-CamSys/95-datepicker-fix

remove unnecessary datepicker actions in trips.js
Merge branch 'cgdevelop' into 118-hide-return-trip-in-summary-if-empty