Remove base32 test from SST.
Add byte_array implementation.
Add base32 and byte_array unit tests.
Pass byte array tests.
Slight change from Qt QByteArray semantics.

Qt implementation is too ugly to try to mimic it.
Move include files from lib/ to include/
Add cmake file to generate doxygen API docs.
Add remaining cmake files to build libssu.
Upgrade doxygen config version.
Add more and more tests.
Update stream implementation.
Add is_empty() and non-const data(), remove dummy move ctor.
Fix boost detection. We require libboost_system now.
Update all headers to compile.
Add file documenting class name mapping.
Update sst/ssu todo.