mod_groups: Check for existence of roster[false] before clearing version (thanks Flo)

Merge 0.7->trunk

util.sasl.scram: Fix remaining - in profile name

util.sasl.*: Adjusting authentication provider names. All '-' replaced with '_'

Merge trunk/Tobias->trunk

util.sasl.*: Adjusting authentication provider names. All '-' replaced with '_'

Merge 0.7->trunk

util.sasl.scram: Fixing logic error in argument checking.

util.sasl.scram: Fixing logic error in argument checking.

Merge 0.7->trunk

(0) -3000 -1000 -300 -100 -10 +10 +100 +300 tip

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