Drop ruby < 1.9.3 support

[tbrisker]

No description provided.

[coveralls]

Coverage remained the same at 56.364% when pulling 62c827d on tbrisker:ruby193 into 82a3bc6 on fog:master.

[geemus]

Thanks, we should do this, but not quite ready to pull the trigger...

Also, looks like this may now be in conflict with the other changes we merged from you. Could you take a look? Thanks!

[tbrisker]

@geemus thanks, updated.
I suggest creating a 0.1.3 release with the latest commits that will support 1.8 for those who still need it and making this a 0.2.0 release for those who don't. If there are bugs that are important or easy to pull back into the 0.1 branch you could have further releases on the 0.1 branch.

[coveralls]

Coverage remained the same at 56.364% when pulling a49e496 on tbrisker:ruby193 into 45cd8db on fog:master.

[geemus]

@tbrisker yeah, that could work. I am a bit bandwidth constrained currently, but when I'm ready to pull the trigger that sounds like a good approach.

[tbrisker]

closed in favor of #11