[FIX,FEATURE] Fixing assign() for const-holder.
Merge pull request #228 from holtgrewe/const_holder_fix

[FIX,FEATURE] Fixing assign() for const-holder.
[API] Parallel: added in-place partialSum() shortcut
[INTERNAL] Parallel: redeclared iterate() on non-const containers
[INTERNAL] Segment StringSet: added Parallel refresh
[API, INTERNAL] Parallel: added transform(), forEach() for non-const containers
Merge pull request #229 from esiragusa/feature/parallel_primitives

More parallel primitives
Merge pull request #226 from rrahn/develop

[FIX, INTERNAL] Fixes issue with bit scan reverse and forward for 32 bit...