Polish Architecture pages.
Added architecture diagram for cloud foundry internals
Added source for architecture diagram
Moved architecture diagram to the correct architecture page
Merge pull request #85 from tsaleh/master

Added architecture diagram for cloud foundry internals
updates to services
Merge pull request #84 from scottfrederick/arch

Polish Architecture pages.
fix services link
clarify values of BOSH_VPC_DOMAIN and BOSH_VPC_SUBDOMAIN
Merge pull request #86 from mstine/master

Clarify values in bosh_environment