And update tests for multi-block usage

Signed-off-by: Luca Fulchir <luker@fenrirproject.org>

used cppcheck, valgrind on the examples.

fix the C interface free(), the example, the build type select.

update the cppcheck files, add the clang scanbuild script

Signed-off-by: Luca Fulchir <luker@fenrirproject.org>

Also, fix a bit the C example.

Signed-off-by: Luca Fulchir <luker@fenrirproject.org>

unused code, plus an old longstanding rfc difference
we should be conformant now.

Signed-off-by: Luca Fulchir <luker@fenrirproject.org>

Still kinda rough, but seems to work

Signed-off-by: Luca Fulchir <luker@fenrirproject.org>

lots of bugfixes, also due to the creation of a couple of examples
for the C and C++ interface. Updated documentation accordingly

Signed-off-by: Luca Fulchir <luker@fenrirproject.org>

We have testsss! (And some embarassing bugfixes, too!)

Signed-off-by: Luca Fulchir <luker@fenrirproject.org>