Refactoring fileforge.pl: inject src_dir

Change-Id: I865d28d6ea3d3782ffa437369e351aeeb8416659
Proftpd overrides src_dir

 * src_dir is overrided by proftp pluging only if the project uses it
 * codendiadm has now the write right by default with the ACL
 * fix phpunit tests concerning the '.' folder

Change-Id: Iabc380e39821790923b87ff56fff5f5d9c64137c
Create forgupgrade for old secure FTP folders

 * Grant new default ACL for existing secure FTP folders
 * default:user:codendiadm is not changed, only user:codendiadm is modified

Change-Id: Ic8015602d1c3145c22f33ef35847a9ac2ee0f4d7
Merge remote-tracking branch 'gerrit/6127_release_SFTP_file_in_FRS' into tuleap-stable-master

* gerrit/6127_release_SFTP_file_in_FRS:
  Create forgupgrade for old secure FTP folders
  Proftpd overrides src_dir
  Refactoring fileforge.pl: inject src_dir

Change-Id: I48564504900528eba52317e70d55990ba16aba3b
Tuleap 6.11.99.38

Change-Id: I819c10ce8d4f0102910ef40bc5ee57fbc487b96f