Adding a datetimepicker
fixing regex for replacing current time range params with selected ones
storing selected dates to cookie
do not reset opposites date if a new date is selected
refactoring onClose() functions of datetextboxes
replacing cookie with session storage
do not hide date fields if dates are found in session storage
when switching dashboard reload with selected dates
reordering 'reset' and 'show' button
last chosen time setting will now be stored in controller (for all dates)
fixing typo in variable name
fixing cookie's expire time
renaming cookie (date => interval)
fix: if "until" parameter is missing, do not initialize graphs with cookie's "until" value
Merge remote-tracking branch 'remotes/hamann/f787b58a237cdfd3b43891dac724e119ef5f6e01' into datepicker_hamann

Conflicts:
	lib/gdash/sinatra_app.rb
Refactor the link to interval to extract the generation of the uri and use URI to generate the urls and keep the parameters
Added a redirect to the /category/dashboard/time/from/to url if the cookie is set and no time is selected
Merge branch 'datepicker_hamann' of https://github.com/keymon/gdash into timepicker

Conflicts:
	lib/gdash/sinatra_app.rb
building url with time/from/to
Merge pull request #65 from hamann/f787b58a237cdfd3b43891dac724e119ef5f6e01

Timepicker