[vala] (5 commits) Non-fast-forward update to branch wip/foreach

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/foreach' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  c29ae9b... glib-2.0: Make PtrArray a subclass of GenericArray
  2beca67... vala: Additionally look for "length" property for "foreach 
  a1a54d7... tests: Add "GenericArray foreach" tests to increase coverag

Commits added to the branch:

  05172d4... posix: Add freopen binding, as FILE.reopen() (*)
  7a14ecc... posix: Add POSIX, GNU and BSD Regex APIs (*)
  65b4e34... glib-2.0: Make PtrArray a subclass of GenericArray
  21028c0... vala: Additionally look for "length" property for "foreach 
  3a69524... tests: Add "GenericArray foreach" tests to increase coverag

(*) This commit already existed in another branch; no separate mail sent