Starting to get ready for v9.12 release
Comment fix
sigc++ sample in gtkmm
gtkmm in list
introduced el::Loggable class
minor sample note
default loggable log
minor sample update
good way of logger class
make loggable class
README and RELEASE NOTES
manual update
custom_class uses loggable interface
Some more changes + some internal classes using el::Loggable
MAKE_LOGGABLE as inline in sample
reverse from Integer to int in sample
inline custom and loggable samples
loggable unit tests
README Update
el::Loggable not used by internal classes for sake of doxygyn