Change bassert to always call assert
Refactor RPC module:
* Move JsonPropertyStream to ripple_json
* Remove unused RPC service manager
* Recreate RPC module in app code area
* Add RPC::Manager
* Add DoPrint handler
Fix clang compile
Update travis to use boost 1.55
Fix gcc compile
Fix a slot tracking issue, improve "print peerfinder" and add documentation
Remove closing count tracking