UTF-8, LF, no BOM, and newlines at the end of files

Ancient versions of CMake required else(), endif(), and similar block
termination commands to have arguments matching the command starting the block.
This is no longer the preferred style.

(transplanted from caf24f1c
)

Removed default parameter from Transform.
Removed the TransformXX typedefs.
Removed references to TransformXX from unit tests and docs.
Assigning Transforms to a sub-group is now forbidden at compile time.
Products should now properly support the Isometry flag.
Fixed alignment checks in MapBase.

* remove EIGEN_BUILD_TESTS and siblings
* add summary at the end of cmake run, hopefully not too verbose
* fix build of quaternion demo
* kill remnants of old binary library option

it never made very precise sense. but now does it still make any?

mess...

* extend PartialRedux::cross() to any matrix sizes with automatic
  vectorization when possible
* unit tests: add "geo_" prefix to all unit tests related to the
  geometry module and start splitting the big "geometry.cpp" tests to
  multiple smaller ones (also include new tests)

* documentation improvements, especially in quickstart guide

              based on the former.
* opengl_demo: makes IcoSphere better (vertices are instanciated only once) and
               removed the generation of a big geometry for the fancy spheres...

 - quaternion vs euler angles interpolation (though the Euler angle version looks a bit too bad)
 - navigation using either a mapping from 2D screen coordinates to 3D points on a sphere
   or the standard approach mapping mouse displacements as rotations around camera's axes.

stable trackball for the fly navigation mode, and started
to put some GUI elements...

* add a WithAlignedOperatorNew class with overloaded operator new
* make Matrix (and Quaternion, Transform, Hyperplane, etc.) use it
  if needed such that "*(new Vector4) = xpr" does not failed anymore.
* Please: make sure your classes having fixed size Eigen's vector
  or matrice attributes inherit WithAlignedOperatorNew
* add a ei_new_allocator STL memory allocator to use with STL containers.
  This allocator really calls operator new on your types (unlike GCC's
  new_allocator). Example:
  std::vector<Vector4f> data(10);
  will segfault if the vectorization is enabled, instead use:
  std::vector<Vector4f,ei_new_allocator<Vector4f> > data(10);
NOTE: you only have to worry if you deal with fixed-size matrix types
with "sizeof(matrix_type)%16==0"...

still fail at runtime in ei_aligned_free() (even without vectorization).

- fix compilation in product.cpp with std::complex
- fix bug in MatrixBase::operator!=

can be seen in Eigen/src/Core/Cwise.h.

* add comments in render() in case anyone ever reads that :P

* increased number of iterations, with more iterations done before
testing divergence. results in x2 speedup from vectorization.

- some temporary fix to get a +50% improvement from vectorization until
  we have vectorisation for comparisons and redux

- much better coloring
- determine max number of iterations and choice between float and double
  at runtime based on zoom level
- do draft renderings with increasing resolution before final rendering