Fix Travis configuration for Python 2.6 (no system_site_packages)
merge master -D org: PR 159 (Tag release prefix)
merge master -D org: PR 164 (Remove system_site_packages flag in travis config)
merge master -D org

Repository: openmicroscopy/snoopycrimecop
Excluded PRs:
  # PR 163 sbesson 'Fix scc rebase documentation issues reported by @ximenesuk' (status: error)
Already up-to-date.

Merged PRs:
  # PR 159 sbesson 'Tag release prefix'
  # PR 164 sbesson 'Remove system_site_packages flag in travis config'

Generated by SCC-merge#316 (http://ci.openmicroscopy.org/job/SCC-merge/316/)