Added Software  Tiers image for sections 2.7 of SRD.
Merge branch 'master' of ssh://git@github.com/Fingerpaint/project-docs.git
Finished first version of section 2.7
Merge branch 'master' of ssh://git@github.com/Fingerpaint/project-docs.git
Merge branch 'master' of ssh://git@github.com/Fingerpaint/project-docs.git