Added FLCommandFlow.
Added repeat and retry to FLCommandFlow.
Renamed FLConcurrentCommand to FLParallelCommand. Deleted FLCommandFlow in favour of FLCommand+Floc Category.
Added more command support in FLCommand+Floc. Added macros for each command.
Added repeat forever and retry forever (set -1).
Added 'then' for chaining commands.
Added FLCommand+KeepAlive.
Added FLDelayCommand.
Renamed some macros.
Cancels FLDelayCommand.
Fixed typos.
Added FLXyzCommand+Floc categories for all commands for fluent api.
Changed behaviour of flseq and flpar.
Changed some macros to accept varargs.
Updated podspec.
Updated example.
Updated readme.