of a mort smart placement
- (Also forgot to mention in my last committ that I fixed a bug that sometimes
  produced double spills in the morgan spiller)

 - Constants for SSE minus and ABS must be of mode Iu and Lu instead od F and D ...

- Make ia32_Push and ia32_Pop return their stackpointer adjustment
- replaced stack_dir enum + unsigned offsets with normal integer offsets
- make schedule verifier detect dead nodes in schedule

create all convs, remember those to be killed and kill them after transformation (to preserve modes during transformation)

- Stackparams get rematerialized now
- several warning fixes

add Projs to CopyB for constraints

fixed LEA DBG statistic call

psi transformation constants are now transformed after the psi phase

moved irg finish functions into this module
fixed indenting

fixed indents
respect dump flag settings