README: update ColDet contact info

Minor code improvements

Replace NULL by nullptr

Replace non-portable GetTickCount() with C++11 std::chrono

Add travis build files

README: add link to HTML documentation

README: use markdown format

Harmonize doxygen comments

Rename CLAUDETTE_LIB_EXPORT to CLAUDETTE_API

Add patch "bug precision fix" from davidgf (from sourceforge "discussion" thread)

Fix indentation issues

Let CollisionModel3D::setTriangleCount() take a std::size_t instead of int

Move code in "Claudette" namespace

Rename project to "Claudette"

Set indentation to four spaces