FutureOnly options and a bugfix

FutureOnly can now be enabled to only allow future dates and times.
Also fixed a bug where the current day of the month was also marked as
today in a different year.
Added date-only mode
Merge branch 'master' of github.com:mugifly/jquery-simple-datetimepicker into 1.7.x
Merge pull request #60 from logitick/master

Add: date-only mode
Fix: Default format and getParse method for date-only mode
Scrolling to previous months is now also disabled when isFutureOnly is set.
Merge branch 'futureOnly' of github.com:camiel/jquery-simple-datetimepicker into camiel-futureOnly

Conflicts:
	jquery.simple-dtpicker.html
	jquery.simple-dtpicker.js
Merge branch 'camiel-futureOnly' of github.com:mugifly/jquery-simple-datetimepicker into 1.7.x

Conflicts:
	CHANGES
	README.md
	jquery.simple-dtpicker.html
	jquery.simple-dtpicker.js