fixes #10 - assertPostCreateResourcePermission() now takes withGrant attribute into account when asserting permission; and updates test cases
simplifies assertPostCreateResourcePermission tests by removing redundant jUnit assertions
adds test cases to assertPostCreateResourcePermission() to validate behavior when accessor has super-user privileges
adds test class for getAuthenticatedResource()
adds test class for getSessionResource()
fixes #11 - assertGlobalResourcePermission() now takes withGrant attribute into account when asserting permission

 - assertGlobalResourcePermission() now takes withGrant attribute into account when asserting the queried permission
 - assertGlobalResourcePermission() is now whitespace consistent with the rest of the API and performs early parameter validation
 - adds test class
adds test cases to assertGlobalResourcePermission() to validate behavior when accessor has super-user privileges
fixes #12 - assertResourcePermission() now takes withGrant attribute into account when asserting permission; adds test class