rewrote index page and added a link to oplist and typelist for use with :ref:, moved LICENSE, a picture and the glossary up one level

function_to_module: creates a dummy module, with the same input / output parameters as the function, and with the same behaviour

put a test as a knowfailure. This way it won't distract people to look at it now. We should maybe look into it after the scrum.

Warning when calling DenseFromSparse was generating way too much output. Removed printing of matrix values in warning.

force test_merge_opt_runtime to run in FAST_COMPILE mode because inplace optimizations take a really long time on that graph