Changed backwards integrator scheme in IRKIntegrator to make it consistent with forward scheme, #948
Renamed RKBase->FixedStepIntegrator, #948
Memleak suppressions for 1.7.1-3

The leaks are real, but theres is nothing casadi can do about it
Added ImplicitFixedStepIntegrator base class, #948
Refactored RKIntegrator for cheaper backward integration and prepared for solution interpolation, #948 #245
Renamed CollocationIntegrator->OldCollocationIntegrator, #948
Attempt to fix trunk
Concernings #916: shutting off one warning
automatic documentation update
automatic documentation update
Made LinearSolverInternal non-abstract to allow use of sparsity pattern propagation, #934
Added test for #934
automatic casadibot merge