Merge remote-tracking branch 'origin/CoreProduct-6.1.x'
Merge branch 'master' into CoreProduct-6.1.x
Merge branch 'CoreProduct-6.1.x' of https://github.com/bonitasoft/bonita-studio into CoreProduct-6.1.x
Merge branch 'CoreProduct-6.1.x' of https://github.com/bonitasoft/bonita-studio.git into CoreProduct-6.1.x
[STUDIO-2879]build installer only if BITROCK_HOME is specified