removed d/l button.
changed filepath vs url detection mechanism to work with windows file paths.
updated assetic.
Merge pull request #377 from stopfstedt/remove_dl_button_from_calendar_pages

removed d/l button.
Merge pull request #378 from stopfstedt/fix_script_aggregation_on_win

Fix script aggregation on win
show/hide progress div
update text
Merge pull request #379 from Trott/updateServerInteractionProgress-specs

updateServerInteractionProgress() specs
add spec for simpleHidingHandler
Merge pull request #381 from Trott/simpleHidingHandler-spec

add spec for simpleHidingHandler