started implementing events
Merge branch 'master' into events
added set for times
Merge remote-tracking branch 'origin/master' into events

Conflicts:
	src/model.h
Merge branch 'master' into events

Conflicts:
	src/model.h
started a complete rewrite of model
debug constructor, pop & sample size working again
improved memory management
added print function
finishes first implementation of basic model structure
now passes all unit tests again
minor cleanups
removed wrong assertion
Merge branch 'master' into events

Conflicts:
	src/forest.h
	src/model.cc
started combining model and param
changes to param
compiling version
test now working
Merge branch 'master' into events

Conflicts:
	src/param.cc
started implementing the parameters