Add missing dependencies, add clean build commands
Add missing dependencies, add clean build commands

* Build client through bash commands
* Add prebuild and postbuild commands to properly handle locales and mailing
  stuff

nono/cozy-calendar,cozy/cozy-calendar,cozy/cozy-calendar,frankrousseau/cozy-calendar,nono/cozy-calendar,frankrousseau/cozy-calendar,clochix/cozy-calendar