Merge pull request #256 from SGpp/drop_java_support

Drop Java support

Merge pull request #222 from SGpp/fix_install_paths

remove hardcoded "sgpp/" folder from library install path

Merge pull request #96 from SGpp/fix-jenkins-badge

Fix Jenkins badge (pointed to old Jenkins job)

Release 3.1.0 (pulled from GitHub v3.1.0)

Updates doxygen

Correction downloads page

Tidy up branch

Update announcements in Doxygen documentation with respect to next re…

…lease.

Insert contents of release_1.0.0.tgz

Insert contents of release_0.9.1.tgz