Update timer.js

Removed zero-unit pluralization and added new unit functions with custom string support.
Update angular-timer.js

Removed zero-unit pluralization and added new unit functions with custom string support.
New plural unit decision functions

Removed zero-unit pluralization and added new unit functions with custom string support. Exaple usage in html:
<timer>{{ minutes }} {{ minuteUnit('minute','minutes') }} {{ seconds }} {{ secondUnit('second','seconds') }}
New plural unit decision functions

Removed zero-unit pluralization and added new unit functions with custom string support. Exaple usage in html:
<timer>{{ minutes }} {{ minuteUnit('minute','minutes') }} {{ seconds }} {{ secondUnit('second','seconds') }}
JSHint fix

Added missing semicolons.
Update angular-timer.js

Added missing semicolons
Added back zero-unit pluralization

Edited tests to match pull request
Added default English values 

If no custom strings are given as inputs, returns default English units
Added default English values 

If no custom strings are given as inputs, returns default English units
Merge pull request #132 from sanderaido/master

New plural unit decision functions