Combine MetropolisHastingsSG{1,2}.h
Remove trailing whitespace
Separate implementation of MetropolisHastingsSG1
mv MetropolisHastingsSG1.h MetropolisHastingsSG.h
Merge pull request #127 from dmcdougall/fix-whitespace

Fix whitespace in licence
Merge remote-tracking branch 'origin/sep_impl_mhsg' into dev

Conflicts:
	src/stats/inc/MetropolisHastingsSG1.h
	src/stats/inc/MetropolisHastingsSG2.h
Fix whitespace in licence