Standardize test src path so unit tests run.
#3: update documentation because the filter cannot apply to the whole CAS server for version < 4
issue-3: update README
Merge pull request #1 from apetro/fix_test_path

Standardize test src path so unit tests run.
Merge pull request #4 from leleuj/issue-3

#3: update documentation because the filter cannot apply to the whole CAS server for version < 4
Add RequestParameterPolicyEnforcementFilter.
Remove SecurityFilter.

Bump version number to `2.0-SNAPSHOT` per semantic versioning.
Drop unused `slf4j`.
Trivial : Remove trailing tab whitespace.
Whitespace : Remove manual newline characters for wrapping.