implement red-black tree with testing - no weight updates
add weight adjustments for input
add weights verification to testing
fix weight updation for all delete cases
fix bugs in insert weight balancing
remove all bugs from weighted red-black tree
polish up the test suite and make it more efficient
polish and document wallettree.go
add to .PHONY of makefile
fix spelling errors
Merge pull request #134 from DavidVorick/rebase

Create the wallet tree, a red-black-weighted tree