add more unit tests for params.common and view-engines
commented file related functions as they are not implemented yet
rm the extra comma
rm the commented/unimplemented functions
supporting yui.config.groups.app.comboSep=& without mangling the & encoding.
Merge pull request #895 from caridy/combosep-app

supporting yui.config.groups.app.comboSep=& without mangling
increasing coverage for dispatch.server
increasing coverage for dispatch.client
Merge pull request #889 from lzhan/unittests

Add more unit tests for params.common and view engine handlebar
Merge pull request #896 from caridy/dispatch-coverage

dispatcher coverage