fixed in-memory max history parameter handling, #ref 78
fixed bug in conditionals of set_str_algo
fevals() getter in cmasolution object
added getter for eigenvalues in solution object
used accessors in lambda functions with friend objects, fixes #79

Conflicts:
	src/cmastrategy.cc
Merge branch 'dev'

Conflicts:
	src/cmaparameters.h
	src/cmasolutions.cc
	src/cmastrategy.cc
Merge branch 'dev'
fixed pkg-config file
Merge branch 'dev'
fixed typo in Changelog