add "DummyProtFlags" if sys/mman.h is missing

[[Imported from SVN: r7017]]

use mprotect only if the m4-test succeeded

[[Imported from SVN: r7016]]

use posix_mprotect, which is also supported by mac-os-x

[[Imported from SVN: r7014]]

rename files... remove underscores

[[Imported from SVN: r7012]]

check scoped new/delete

[[Imported from SVN: r7011]]

use mallocallocator for book-keeping-containers
... make new/delete work

[[Imported from SVN: r7010]]

actually use AllocationManager in new/delete
... doesn't work yet, as the bookkeeping invokes new/delete again

[[Imported from SVN: r7008]]

- check result of mprotect
- unprotect memory upon free

[[Imported from SVN: r7007]]

[[Imported from SVN: r7006]]