[petsc-announce] message for petsc git users - using 'maint' branch

[Satish Balay]

Dear PETSc 'maint' branch users,

In anticipation of the next 3.7 release of petsc - I've updated
'maint' branch in petsc git repository to 3.7 pre-release changes.

If you 'git pull' on maint branch - you would get these 3.7
pre-release changes.

To stay on 3.6 - you can switch to 'maint-3.6' branch.

git fetch
git checkout maint-3.6

I apologize for any inconvenience this has caused.

Satish