Merge pull request #49 from darkstar21/develop

adds file to convert tree to regex string
removeNode can correctly get the node and tree

we're setting stuff on the window for testing purposes, lets be sure to remove that.
modifyTree can remove nodes
Can remove Alternates & children of alternates
Merge pull request #50 from tgrrtt/develop

Implemented match and alternate removal
(fix) starts idNum at 0 on each new tree
(cleanup) cleaned modify-tree factory, railroad directive, and main controller