Dialogue transition enable attached scripts

Check condition validity and evaluate impact
Merge branch 'master'
conflicts:
 wegas-app/src/main/webapp/wegas-editor/js/inputex/wegas-inputex-wysiwygscript.js
Merge branch 'master' of github.com:Heigvd/Wegas

# By Francois-Xavier Aeberhard
# Via Francois-Xavier Aeberhard
* 'master' of github.com:Heigvd/Wegas:
  Fix pom
  Leaderway - Fix encoding
  Fix exclude in pom.xml
  Leaderway v2