Merge pull request #64 from theghostbel/master

Update shortDays translation for latvian
Remove extra whitespace from latvian translation
Remove trailing white spaces
Let DateTime constructor do the parsing if needed
Just create a clone when passing DateTime for DateTime constructor
Ignore times in isBetweenDates method
Rename local variable to prevent confusion with function name
Use midnight time for current date
Pass locale as string instead of object to have less clutter in playground examples
Add ability to use unminified version of playground
Update playground
Update change log
Build for version 4.2.1
Add example of only rendering a calendar
Fix jshint warnings
Build for version 4.2.2
Replace DateTime.now().getOnlyDate() with DateTime.today() when possible
Add clearing for range
Add clear for single date calendar
Show clear button only if range is set