separates dispatcher and fixture functionality of Fixture class
corrects indentation and removes a line of commented code
reintroduced public members of Fixture class for compatibility
Introduced parent class for Fixture named BaseFixture.
This seems the best way to get a clean fixture (do dispatching)
while also keeping the Fixture class backwards compatible.
using doTable i.s.o. doTables where possible
Merge pull request #281 from MartinGijsen/master

moves dispatching functionality out of Fixture class into a Dispatcher class