Documentation Changes

• Add a blurb stating that Solaris only supports WiredTiger.
• Possibly clarify in 3.0 docs that 32-bit releases were not supported in production, but this is a lower priority.

Description

mongod.org/downloads & http://docs.mongodb.org/manual/installation/ does not provide adequate warnings on 32 bit releases being "test" only and not supported in production for 3.0. In fact, the latter URL, states that it is supported in somewhat unclear terms.

Can we please add a firm warning here to be clear?

Furthermore, this page states Solaris & SmartOS are supported. Which is true for MMAP, but not for WT. This should also be clarified in the downloads page.