Analyzer: Re-introduce ValgrindTool level

This partially reverts 1fb755bb42. It turns out that this is a better
place to have the valgrind specific startLocal/startRemote logic
shared by the valgrind tools.

Change-Id: I1638b6d7665db81227e0a1a9aeef1ce944449391
Reviewed-by: Aurindam Jana <aurindam.jana@digia.com>
Fix Windows build.

Was broken by b055c0e50652219959352eda32d6333205ef24f2.

Change-Id: I3c39dbfcf5ddd72e15fc97d3d4df9073824dc391
Reviewed-by: hjk <hjk121@nokiamail.com>
CustomParser: Compile fix with namespaced Qt

Change-Id: I1e84ff126e50052cd1990f33a7b85d19fc4f3b13
Reviewed-by: hjk <hjk121@nokiamail.com>