New version; updated changelog

First non pre release for rails3
Updated copyright notice
Updated engine to use plugins base functionality
Updated readme and gemspec
Pushed version and updated changelog
Merge pull request #21 from finnlabs/release/1.0

Release/1.0
Fix plugin loading when occurring after openproject-plugins in Gemfile
Merge branch 'release/1.0' into dev (again for 1.0)
enable global role factory to create more than 1
Fix path of assets that should be precompiled
patching spec to make it work with impermanent-memberships

This is not a proper solution but a quick one.
Left a comment for the proper solution.
force fetching of global_roles
Merge pull request #22 from finnlabs/fix/failing_cukes

force fetching of global_roles
don't use url but path for form action

URLs are potentially broken (wrong scheme).
fixed copyright
clarifying spec's intent
rubocopify spec
Merge pull request #23 from finnlabs/fix/cannot_assign_global_role_7187

Fix #7187: Cannot assign global role
Attache onclick event for global roles checkbox, when form didn't pass validation
Display only global group permissions, when global role is checked and form is submited without name