[[Imported from SVN: r625]]

[[Imported from SVN: r624]]

[[Imported from SVN: r623]]

[[Imported from SVN: r622]]

[[Imported from SVN: r621]]

[[Imported from SVN: r620]]

BlockVector of BlockVectors.  This is certainly not the most
efficient of implementations, but I get all the iterators for
free.

[[Imported from SVN: r619]]

[[Imported from SVN: r618]]

[[Imported from SVN: r617]]

[[Imported from SVN: r616]]

[[Imported from SVN: r615]]

Since this is a cross-repository move which is not supported
by subversion, the history of the file is lost.

[[Imported from SVN: r614]]

- really only do one preconditioner application if maxit=1

[[Imported from SVN: r613]]

This makes things just easier.
Any objections?

[[Imported from SVN: r612]]

[[Imported from SVN: r611]]

[[Imported from SVN: r610]]

[[Imported from SVN: r609]]

- addindex() now uses STL stuff and is now simpler
  (fixes FlySpray task 127)
- the method coldim() has been written and has a
  time complexity of O(nnz) instead of O(m*nnz).
  (FlySpray 132)

[[Imported from SVN: r608]]

[[Imported from SVN: r607]]

[[Imported from SVN: r606]]

[[Imported from SVN: r605]]

[[Imported from SVN: r604]]

[[Imported from SVN: r603]]

[[Imported from SVN: r602]]

[[Imported from SVN: r601]]

[[Imported from SVN: r600]]

[[Imported from SVN: r599]]

[[Imported from SVN: r598]]

Sequential amg test called mpi routines when mpi is present.
Fixed.

[[Imported from SVN: r597]]

[[Imported from SVN: r596]]

[[Imported from SVN: r595]]

[[Imported from SVN: r594]]

[[Imported from SVN: r593]]

[[Imported from SVN: r592]]

[[Imported from SVN: r591]]

[[Imported from SVN: r590]]

[[Imported from SVN: r589]]

[[Imported from SVN: r588]]

[[Imported from SVN: r587]]

[[Imported from SVN: r586]]