Merge pull request #38 from petersohn/master

RandomWalkPolygonGenerator
First version of CLI health grapher.
Added graph title and limited plot output to last 100 averages in runWithGraphs.sh
Added more robust path checking for feedgnuplot, and alt-screen cleanup in ^C.
Removed needless backticks in checking for feedgnuplot in runWithGraphs.sh
Reworked feedgnuplot dependency check in runWithGraphs.sh
Yet another feedgnuplot dependency commit.
which feedgnuplot now outputs 2 to dev/null in runWithGraphs.sh
Removed unnecessary test call in runWithGraphs.sh
Removed unneeded whitespace in runWithGraphs.sh
Reworked 1,2 redirection in runWithGraphs.sh.
Swapped order of redirection in runWithGraphs.sh
Merge pull request #39 from matthiasvegh/graphedoutput

First version of CLI health grapher.
runWithGraphs.sh consolidated
Moved runWithGraphs to scripts folder
Negated logic in runWithScripts
Don't tail the graph