* remove all what was marked deprecated

issues when multiple compilers are used on the same system.

dependency => significant speed up

CCMAIL:baxelrod@coroware.com

* Updated Mainpage.dox's directives used by kde's scripts

correctly initialized to 0.

* add a MappedSparseMatrix class (like Eigen::Map but for sparse
  matrices)
* rename SparseArray to CompressedStorage

* improved performance of mat*=scalar
* bug fix in cwise*

That means a lot of features which were available for sparse matrices
via the dense (and super slow) implemention are no longer available.
All features which make sense for sparse matrices (aka can be implemented efficiently) will be
implemented soon, but don't expect to see an API as rich as for the dense path.
Other changes:
* no block(), row(), col() anymore.
* instead use .innerVector() to get a col or row vector of a matrix.
* .segment(), start(), end() will be back soon, not sure for block()
* faster cwise product

byte aligned, after discussion with Mark Davies.

CCMAIL: mark@ecs.vuw.ac.nz

* pretext to bump to beta6

* update test_stdvector
* Quaternion() does nothing (instead of bug)
* update test_geometry
* some renaming

also split into several pages for better reusability (more generally useful than
just for this assert)