fix($resource) Route constructor, updated RegExp

[fredrikbonander]

Update RegExp to allow urlParams with out leading slash (/).

• Will allow reoucese to be loaded from a relative path

Example:
var R = $resource(':path');
R.get({ path : 'data.json' });

Example usage:
Load resources in applications not using webserver, ie local webapp in on a tablet.

[mhevery]

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[fredrikbonander]

@mhevery Don't know how you get the registration, but it's filled out and posted. The individual one.

[IgorMinar]

this changed caused regressions.

Resources with template:

/api/myapp/:myresource?from=:from&to=:to&histlen=:histlen

generate urls:

/api/myapp/pear+apple?from=:from&to=:to&histlen=:histlen?from=2012-04-01&histlen=3&to=2012-04-29

should be:

/api/myapp/pear+apple?from=2012-04-01&to=2012-04-29&histlen=3

[fredrikbonander]

Updated the regexp (simplified it) and added test for your example.

[mhevery]

MERGED, thanks