Merge branch 'maint-1.1'
- maint-1.1: installation: GnuPG key server location update installation: README.rst with build status badges WebSession: Python-2.4 combatibility issue fix WebSubmit: file stamper option to copy metadata
- Merge note: amended README.rst badge to use master, and removed Python-2.4 compatibiity fix that is not needed since master requires Python-2.6 at least.
Signed-off-by: Tibor Simko <tibor.simko@cern.ch>