Mario Mulansky f5079fb258 add init_stepper as template param to abm stepper
The Adams-Bashforth-Moulton stepper has now also the initializing stepper
as a template parameter.

This allows to get rid of the specific test case for multi-step methods in
order_quadrature_formula. Furthermore, some cosmetic adjustments were made in
this test: global variables, camel case naming, while loop -> for loop.
2015-01-21 13:52:56 +01:00
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