Splitted gzio in tar and april_io packages
Adding matrix ZIP file read/write
added zipio package
Generalizing file and stream read/write in APRIL-ANN
Solving bug when opening a Lua file descriptor
Using luaL_ref and luaL_unref to store string reference in registry table
More fore generic serialization methods
More on streams... still in development
Added cstring.h
Merge pull request #83 from pakozm/devel

Devel, dangerous pull
More streams
Debug of new streams
Streams unit testing done, it seems be working. Matrix read/write procedures will be rewritten using this implementation. GZIO and other ZIP readers will be also prepared to work with the new classes.
Debugging GZIO complete
Large code refactorization, be careful with following pulls and merges
Debuging new code refactor
Added BufferedInputStream for streams which need a read buffer but not a write buffer
Removing compiler warnings
Solving problems with smart pointers
Playing with smart pointers