Deprecates method that produces only one root of the graph when there might be more than one, adds a replacement for it.
Adds recursive support for some pruners, moves to 0.2.3
Adds pruning strategy classes and moves to SNAPSHOT version.
Stops tracking an idea project file.
Merge branch 'feature/AddPrunningStrategy' into develop
Fixes badly handled case when no multiple hypothesis testing correction is used.
Updates pruning strategies.
Corrects bug with null p-values (when no multiple hypothesis test is done). Minor comment changes/deletions.
Adds a shell script to update the chebi ontology source files.
Adds transparency to labels and nodes that are not significant.
Adds the pull request by Sarah into develop.
Adds filetype to gitignore (vim ~ swap style).
Merge branch 'release/0.2.3'