Fixes for MATLAB interface. (1) Fixed MPIUni to be reentrant again, (2) fixed PetscSF to be reentrant

Uncrustified src/sys/*

Hg-commit: 9f71677807bad7b55428a6cc0f5ccc5052e91805

Reformatting: 'No space after a '(' or before a ')''

Hg-commit: 797341a7bfba18bb97e6da668b36bad2e5977356

Fixed all violations of 'In function declaration the open bracket { should be on the next line, not on the same line as the function name and arguments'

Hg-commit: dcf94e40c4cd63bca3cd717b13d3be0d4e

Fixed all violations of 'In function declaration the open bracket { should be on the next line, not on the same line as the function name and arguments'

Hg-commit: dcf94e40c4cd63bca3cd717b13d3be0d4ebc15eb

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