New way of specifying experiments from command line
README updated
Small fix for list: modifier
Fix for list: again
CVS format for graph 2d
Structure for actions in a model
Fixing 3d plots
Fixes in main file
Fix pyPEPA
Changed logging level
Changed log level to DEBUG
Changes to .gitignore
Some error reporting when deadlock found
Closes #1 with aggregation number =1
Changes in distr
Merge pull request #3 from allanderek/master

Internalise pepa_model.derive() to pepa_model
Changed pyPEPA to pypepa as @allanderek suggested.

Additionally, some files added to .gitignore.
Name change of the main lib directory, libpepa -> pyPEPA
Merge branch 'master' into dev

Conflicts:
	.gitignore
	README.md
	pypepa.py
History, licence and packaging