adding infrastructure for variable rec & mut rates
make forest respect rec rate changes
ensure that model is reseted between loci
remove unneeded check
add command line options for rate changes
fix problem in debug code

which occurred when two events happened at the same time. This seems to be
possible with growth and might be introduced by the fastlog/fastexp functions,
but should not be a problem for the production code.
rewriting process ld data code
adjust calculation of rec rates
fix wrong assertion
Merge branch 'master' into variable_rec_rates

Conflicts:
	src/param.cc
Merge branch 'variable_rec_rates'
increase version to 0.9.2
adding process data script
merge model.cc from jz
Merge branch 'master' of https://github.com/paulstaab/scrm
Merge branch 'master' into jz

Conflicts:
	src/forest.cc
	src/model.h
Revert "Merge branch 'master' into jz"

This reverts commit d5875e1e56b2d3158a50b4ea570617a2d8c3f9df, reversing
changes made to 5d63ebb1cee33a06dc0bb7ccb3d450c91d6e989a.