Bump to version 2.23.9
Bump to version 2.23.10
Bump to version 2.23.11
customization message https://github.com/globaleaks/GlobaLeaks/issues/418
modify starting page with https://github.com/globaleaks/GlobaLeaks/issues/416
Merge branch 'devel' of github.com:globaleaks/GLClient into devel