Update README.md

The scrollDefaultTime is not documented but is very useful.
Merge pull request #73 from mrben/patch-1

scrollDefaultTime option missing from README.md
Merge branch 'master' of https://github.com/agoodno/jquery-timepicker into agoodno-master
Rearranged code to set time parser.
Merge branch 'master' into gh-pages

Conflicts:
	jquery.timepicker.js