Return original content if ng-classify pattern is not found

[CaryLandholt]

Anything other than the following two patterns should return the original content.

class {{appName}} extends {{App|Animation|Config|Controller|Directive|Factory|Filter|Provider|Run|Service}}
    constructor: ({{params}}) ->
        # module body here

class {{name}} extends {{App|Constant|Value}}
    @constructor = {{value}}

Currently an exception is thrown.