Added invalidAt function to get invalid unit index

isValid is boolean, so its not very helpful in determining which section of
a date is wrong. inavlidAt returns the index of the broken token, where 0 is
year and 6 is millisecond.
Moment creation defaults to current date
Make jshint happy
Update nb.js

Change the long date format, so that it follows the most common Norwegian system for dates (DD.MM.YYYY). Ref. http://en.wikipedia.org/wiki/Date_and_time_notation_in_Norway.
Add bower.json

Eventually Bower is likely to become incompatible with the component.json format, and the warnings will turn to errors when installing with Bower.
Fix broken lang tests in Argentina

This was reported in #816.
It happens because there is DST in Argentina on 30 Dec 2007.
Fixed the unit test for the Norwegian language configuration
Merge pull request #915 from ichernev/features/invalid-at

Added invalidAt function to get invalid unit index
Merge pull request #949 from tkallevik/patch-1

Change the Norwegian language configuration to follow the most common date format
Merge pull request #912 from ichernev/feature/create-defaults-to-current-date

Moment creation defaults to current date
Merge pull request #951 from ichernev/bugfix/argentina-dst-failing-test

Fix broken lang tests in Argentina
Merge pull request #950 from mroderick/hotfix/2.1.0-add-bower.json

Add bower.json
Removed exetuable bit on lang/fa.js