Renamed placemarkControl -> placemarkController

. #133
Renamed placemarkDetailControl -> placemarkDetailController

. #133
Renamed countryControl -> countryController

. #133
Removed old code and new Handlebars helper

- Removed refs to nonused JS libs on Dashboard.html
- Removed old commented assignement
- Created new Handlebars helper to render
  placemarksDetails

. #133
Images on map details work as expected

Added a new placemarkdetailView and reworked
how the placemarksdetails works to prevent the
view to rerender.

. #133
Added new "collected on" translation string
Updated the appengine-web puppet template
Moving parts from map-view to maps controllers
Issue #133 - Fixes problem with bindings and photo questions
Placemark details images now works

Had to use a binding to a CSS class that either
hide or show the image. Removing the image with
handlebar logic will make the view to re-render
and Ember does not like that.

. #133
Updated css to fix small UI issue on initial load

. #133
Fixed issue with re-render on deselection of placemarkers

. #133
Issue #133 - Small improvemnts in the code

* Computed properties shouldn't modify the state of the object
* There is no need to have an additional attribute for the CSS class
Small syntax change

. #133