#620: logout requests should contain logoutRequest Parameter
marked the field to be final. Mocked httpclient tests
Merge pull request #624 from Unicon/back-slo-620

#620: logout requests should contain logoutRequest Parameter
Fixed typos
Fixed typos
updated script to push javadoc output to null

This helps with travis logs and time it takes to run the build
Disabling test log generation for the travis build

This should speed up the test execution process.
updated readme with coveralls badge
fixed indentation
Merge branch 'master' into slo-persvc-#573

Conflicts:
	cas-server-core/src/test/java/org/jasig/cas/logout/LogoutManagerImplTests.java