Prepare for "release" v1.2.0

High: sbd: Maximize scheduler and IO priority in the child processes …

…(bnc#702907)

High: sbd: Maximize scheduler and IO priority in the child processes …

…(bnc#702907)

High: sbd: Maximize scheduler and IO priority in the child processes …

…(bnc#702907)

Dev: stonith: external: undo previous patchset (thanks to Lars Ellenb…

…erg)

Dev: stonith: external: undo previous patchset (thanks to Lars Ellenb…

…erg)

Low: sbd: include time.h (thanks to Lars Ellenberg)

Low: stonith: sbd: don't print log messages to stderr

Low: stonith: sbd: don't print log messages to stderr

Low: stonith: external/sbd: improve logging