bootstr_eff script modified
Merge branch 'master' of git://github.com/cgroll/AssetMgmt.jl

Conflicts:
	test/bootstr_eff.jl
Merge branch 'master' of git://github.com/cgroll/AssetMgmt.jl
test file renamed
put some old files in comments, performance and strategies added
evolving weights, df composition added
some further investment properties implemented
moved functions from script to function base