Base: simplify centering implementation
Base: simplify centering implementation

Ignore-this: 91f5826efbddca4ab141d8aea5ae277d

darcs-hash:20110116082410-e018d-d743f4a65db2dfbc164eb64b6fe1b4c8916311e8.gz

ktvoelker/vty-ui,KommuSoft/vty-ui