Monte carlo for SIR model

Default recovery method not being overridden in the args init method

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Merge pull request #7 from akellehe/sir-tests-rc1

Monte carlo for SIR model
Implemented recovery
Merge pull request #8 from akellehe/add-recovery-rc1

Implemented recovery
Update README.md
added two-cluster monte carlo
Fixes setting transmission probability in constructor

Added docs, changed kwarg to 'edges' from 'graph'

Added dijkstra's algo

Starting a joint probability example
Merge pull request #11 from akellehe/dijkstra-rc1

Fixes setting transmission probability in constructor
Merge branch 'master' of github.com:akellehe/graphism into graph_generators
added modular cascade example
Committing joint prob example
Added method to access recovered nodes
Committing unknwon sir-monte-carlo tweaks
Getters and setters for transmission and recovery probability functions
Merge branch 'master' of github.com:akellehe/graphism into graph_generators
Merge pull request #13 from akellehe/getters-and-setters-for-prob-functions

Getters and setters for prob functions
Merge branch 'master' of github.com:akellehe/graphism into graph_generators
added tp and rp change to BA cascade