Removed dec2bin and bin2dec from NAMESPACE. Reduced to helper function.

New function as.character.binary
New function as.character.binary.

as.binary() does the task of dec2bin using dec2bin as a helper function.

modified binary example
Using as.binary instead of dec2bin.

converting all kind of objects to binary is the task that as.binary() has to take care of.
Merge branch 'master' of github.com:d4ndo/binaryLogic