Improved exceptions and reporting exceptions for command-line compiler.
Use boost errinfo.
Watch API.
Use createTypeError everywhere and stream out Location.
Remove nullptr comparisons.
Use endl instead of "\n".
Use the passed stream, not std::cerr.
Merge pull request #410 from chriseth/sol_exceptions

Improved exceptions and reporting exceptions for command-line compiler.
Whisper is functional from the JS API.
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop
Update serpent.
Disable wallet import for now.
Latest PoC-7 serpent.
Whisper calls back for pre-existing messages.
TTL works.
Remove stupid assertion.
Add licence header to solc.
CMakeLists library dependency cleanup for  libdevcore, libevmface, libsolidity and solc.

Fixes #417.
Corrected file description.
Whisperer in AZ.
More Whisper fixups.
Add files fix VS2013
Merge pull request #420 from nicksavers/develop

Add files fix VS2013