[grid.provider.cube] use new vector notation
[common.configtree] small fixes
[functions.checkerboard] use new vector notation and new get method
[functions.constant] use new get method
[functions.expression] style fix
[functions.spe10] use new vector notation and new get method
[grid.boundaryinfo] use new vector notation
[functions.checkerboard/constant] style fix
Merge remote-tracking branch 'tobias/master'
introduce gcc and clang section in disable_warnings.hh
remove #error intended to debug preprocessor
Merge remote-tracking branch 'origin/adapt_disable_warnings_to_gcc'