rchardet19 upgrade

[Laykou]

Is there any specific dependency on rchardet19 gem or could it be upgraded to latest rchardet?

It also contains support for Ruby 1.9.

https://github.com/jmhodges/rchardet

If we use e.g. git gem which has this as dependency, there is conflict in some constants with rchardet19 version.

gems/rchardet19-1.3.7/lib/rchardet19.rb:59: warning: already initialized constant CharDet::VERSION
gems/rchardet-1.8.0/lib/rchardet/version.rb:2: warning: previous definition of VERSION was here

I know it's only warning, but I'd like to resolve it

[janz93]

same problem as #55 and therefore can be closed

[Laykou]

Haha thank you. I see this has been couple of years. We already forked this and are using our local branch. But I will be glad to switch back to officially supported version :)