add Module::Runtime as the core mechanism

Module::Runtime seems even more promising than Class::Load

Related to perldancer/Dancer2#166
Merge branch 'module-loader'

Fixes issue #166
fix for #166 was passing undef for version
fix comment indentation
Fix Dancer::Test param passing

dancer_response adds @params to REQUEST_URI when it should add them to
QUERY_STRING. Otherwise the route never seems them

e.g. param('test') would be undef.
fix name of Dancer2::Manual::Hooks
fix github links
link SEE ALSO entries in tutorial