Add support for 128 KHz

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Set speed to 128000L
2. Verify
3.

What is the expected output? 

Code will compile/verify.

What do you see instead?

Various errors related to TinyDebugSerial compilation errors.

What version of the product are you using? On what operating system?

1.5.0 latest snapshot. OS X 10.9.4 with Arduino 1.5.7.

Please provide any additional information below.

Problem exists for Tiny85 @ 128 KHz, and for 2313 if you try to set the speed 
to 128 KHz.

Original issue reported on code.google.com by [email protected] on 16 Aug 2014 at 3:41