* [NOD-669] Remove the "get" from getBlueBlocksBetween.
* [NOD-669] Remove the "Get" from GetBlueBlocksHeadersBetween.
* [NOD-669] In blueBlocksBetween, rename startHash to lowHash and stopHash to highHash.
* [NOD-669] Rename startHash to lowHash and stopHash to highHash in blockLocator logic.
* [NOD-669] Remove zeroHash logic in blockLocator.
* [NOD-669] Finish renaming startHash and stopHash in blockdag.
* [NOD-669] Rename startHash and stopHash in blockdag where I previously missed it.
* [NOD-669] Rename startHash and stopHash in blockdag where I previously missed it some more.
* [NOD-669] Rename startHash and stopHash in blockdag where I previously missed it some more some more.
* [NOD-669] Fix bad grammar in method names.
* [NOD-669] Rename lowHash to blockHash in SelectedParentChain.
* [NOD-669] Fix a comment.
* [NOD-275] Moved getBlockTemplate and related functionality to a separate file.
* [NOD-275] Started moving handlers to separate files.
* [NOD-275] Fixed merge errors.
* [NOD-275] Moved all handlers out of rpcserver.go.
* [NOD-275] Moved non-shared functions out of rpcserver.go.
* [NOD-275] Moved handleGetAllManualNodesInfo to a separate file.
* [NOD-275] Moved handlers out of rpcwebsocket.go to separate files.
* [NOD-275] Fixed import error.
* [NOD-275] Renamed all handler files to include underscores.
* [NOD-275] Moved common rpc helper functions to common.go.