whitespace
Need to add static views for asset tests
Modernize asset spec source url handling

Pyramid 1.3+ tolerates absolute `static_url`
Fix asset resolution failures and improve globbing

Taking the absolute path of an asset spec containing a glob will
fail, so parse the asset spec first and resolve the package before
delegating to the super class to consider the package directory.

Tests are green again.
De-uglify the case of no active request

Checking the error message here is a lot less sane than just coding
defensively against the value being `None` in the first place.
Handle asset specs in output urls

Fixes #14
Add url mapping and load path test
Move non- asset spec tests to the general suite
Merge pull request #24 from tilgovi/globbing_asset_and_test_fixes

Globbing asset and test fixes