Merge tag '1.3.4' into develop

Release: 1.3.4
Preparation for new development cycle after release 1.3.4
Update for AVH Framework

Due to several changes in the AVH Framework, we need to update several
methods in the plugin.
Remove Capistrano

The RPS Website is shared hosting without SSH, so Capistrano doesn't work. We're using git ftp instead.
Changes to prepare for github-updater plugin
Wrong license
Unused variables.
Version bump 1.3.5-rc.1
Update with release notes
Version bump 1.3.5
Merge branch 'release/1.3.5'