Fix bug where tex doens't liek abs path, only rel path
Add in removeRedundantNodes
Few minor changes to removeRedundantEdges - remove silly print statements, add skip for vertex in edgeWriter
Lots of small changes: removing extra print statements, extra whitespace, config -> CONFIG
Add option to identify Interesting particles by PDGID as well as name
Move actions into functions in pdfPrinter so easier to replace them, debug.
Change so default for all mode is curvy edges,  and now tikz does snaky lines even with curvy edges. win.
Incorrect method call
Test tikz file with useful additions