Merge pull request #798 from JohannesPfeifer/4.4

Add initial values to prevent unit test from crashing due to numerical i...
Add missing simple option to global_initialization.m

(cherry picked from commit 268e8627f0af258933652dd18fc8945c151e7ba5)

Conflicts:
	matlab/global_initialization.m
Fix handling of some options in simplex_optimization_routine.m

One was unset, leading to crashes, and the other one was ignored due to naming conflicts

(cherry picked from commit 3d6316bc5ebee23ab5e92352236bdf676471f0cf)
Modify unit test for mode_compute=8 to set optimizer options

(cherry picked from commit d27e5bc5c2af7c8dd7a186e217aa769bbeb581ad)