RodSolver is now called RiemannianTrustRegionSolver, and can be parametrized with the TargetSpace.  Some remains of RigidBodyMotion are still there, though.

[[Imported from SVN: r4041]]

[[Imported from SVN: r4040]]

[[Imported from SVN: r4039]]

[[Imported from SVN: r4038]]

[[Imported from SVN: r4037]]

[[Imported from SVN: r4036]]

[[Imported from SVN: r4035]]

[[Imported from SVN: r4034]]

[[Imported from SVN: r4033]]

[[Imported from SVN: r4030]]

[[Imported from SVN: r4029]]

Todo: The target space should really be a template parameter!

[[Imported from SVN: r4028]]

[[Imported from SVN: r4026]]

[[Imported from SVN: r4024]]

[[Imported from SVN: r4023]]

[[Imported from SVN: r4022]]

[[Imported from SVN: r4021]]

[[Imported from SVN: r4020]]

now works on a per-element basis and has been moved to the local rod assembler.
That way, it has lost most of its 1d-ness.  In the future, it will be usable
for other problems as well.

[[Imported from SVN: r4019]]

[[Imported from SVN: r4017]]

[[Imported from SVN: r4016]]

[[Imported from SVN: r4015]]

[[Imported from SVN: r4010]]

The class 'Configuration' is now called 'RigidBodyMotion', and can be parametrized by the space dimension

[[Imported from SVN: r4003]]

renaming the file 'configuration.hh' to 'rigidbodymotion.hh', which is a lot more meaningful.  Renaming the actual class will follow in a second.

[[Imported from SVN: r4002]]

[[Imported from SVN: r4001]]

[[Imported from SVN: r4000]]

[[Imported from SVN: r3998]]

[[Imported from SVN: r3990]]

[[Imported from SVN: r3500]]

[[Imported from SVN: r3488]]

[[Imported from SVN: r3487]]

[[Imported from SVN: r3413]]

use a compressed transfer operator and the Mandel obstacle restrictor.  This gives a speedup of about 5

[[Imported from SVN: r3320]]

[[Imported from SVN: r3301]]

[[Imported from SVN: r3285]]

[[Imported from SVN: r3284]]

[[Imported from SVN: r2927]]

[[Imported from SVN: r2615]]

[[Imported from SVN: r2603]]