Backport improvments and fix from ios support #17

Merged bdonneaux merged 4 commits into DEVand:master from DEVand:devel_bear on 29 Mar 2018
2018-03-29
@Benoit Donneaux
Adapt to new fastLane methods supporting ios ...
Benoit Donneaux committed on 29 Mar 2018
@Benoit Donneaux
Switch from lazyGitPass to gitAuth ...
Benoit Donneaux committed on 29 Mar 2018
@Benoit Donneaux
Add a buildDir variable for flexibility and call property branch ...
Benoit Donneaux committed on 29 Mar 2018
@Benoit Donneaux
Fix wrong DRYRUN condition ...
Benoit Donneaux committed on 29 Mar 2018