Moved stopwatch and extension initialization. Resolves #1193

Moves the creation of the stopwatch component inside the provider
initialization and the initialization of extensions inside it's own
method. Added the call to initExtensions to the latest possible position
- after mountpoint initialization and before processing "before" handler
(which may have additional handler added by extensions).
Merge pull request #1202 from kkriehl/master

Moved stopwatch and extension initialization. Resolves #1193