[common.header] do not disable -Wdeprecated-declarations
disable some warnings from core modules
[grid.provider.cube] default to a finer grid
move function -> functions
remove trailing whitespace autotools complained about
[grid.intersection] added missing include
also ReferenceElements does not exist in the current
dune-geometry release, replaced it by GenericReferenceElements
if it called ReferenceElements in the current master, we need a check
[lib] added math
[functions] fixed wrong includes
[test] fixed wrong function includes
[functions] all functions provide a static_id()
removed dune/stuff/exists.hh
moved localfunction/interface to functions/interfaces
[functions] should work again
[functions] added jacobian(), fixes #248
enable/disable warnings
[functions.interfaces] really fix #248 this time
[functions.fromfile] remove ascii, since it is not used anywhere
[grid.boundaryinfo] remove useless include
[functions.expression.base] make dimensions unsigned
disabled some more warnings