and slightly tweak the API syntax.

CppUnit is really too large for our needs, would require to be precompiled
for many platforms, in all combinations of debug and release modes, with
additional variants for libstdc++ versions. We replace it with our own
lightweight implementation, LolUnit. Good riddance.

so that it builds properly.

"make bench" to work when cross-compiling for Windows.

version of sinf().

This version is faster (about 25% on x86_64) and works when extreme
optimisation options such as -ffast-math are used.

Apparently g++ 4.5.2 on native mingw32 inserts references to __Unwind_Resume
when exceptions are supported. This function is not present in the g++ 4.4
cross-compiler found in Debian, leading to linker errors when cross-
compiling. So we use the latter to build CppUnit itself.

Another problem arises with g++ 4.4, which is the incomplete stripping of
exceptions when -fno-exceptions is used. Since ExceptionTestCaseDecorator.h
has such code, we protect it with #ifdef __EXCEPTIONS in the meantime.

used on the PS3 platform.

number conversions.

a C macro on some systems (Android NDK, PS3...).

for future array versions.

feature.

the float4x4::identity() method is no longer necessary.