Resolved a few MMS issues.

1) Fixed the "Unsupported Encoding!" problem.

2) Workaround for the Sprint issue, where the MMSC is adding a single
   extra byte to the end of each encrypted message.

3) Fixed the "large blob of base64 text" on encrypted MMS problem.
add BUILDING instructions
Merge pull request #208 from richo/features/submodule

Easier development setup
Catch attempts to dial on devices with no dialer.
Lighter check
Updated translations
Bumping version to 0.9.9.4