Problem: Permissions on archivematica_src_dir folder

[rayzilt]

On systems where umask is set not default due to stricting, task 'Synchronize requirements' fails with permission denied.
This happens on a system where umask is set '0027', default umask is '0022' as root.

The user 'archiveamtica' is not allowed to change directory into archivematica_src_dir due to in this situation the folder has 0750 permissions. Owner and Group are both root.

I've created a PR which set the mode 0755 on directory creating.

[rayzilt]

When deployment is finnished, services do not start due to access denied at serveral places. I'll make a new comment with more information later and will update the PR

[rayzilt]

Updated all tasks with correct 'mode' property. Playbook runs fine and services start up correctly on a system with umask set to '0027'.

[rayzilt]

PR: #406