Support backticks in method names

Created by: NickFirmani

Resolves #1621 (closed)

When a method contains backticks (in Kotlin) the resultant generated classes.txt file has lines that look like the following:

com/Example/ExampleTest$example method name$1 e925a3f

Since spaces are valid in this case, splitting into two parts and aborting if there are more than two parts isn't the ideal behavior, so instead we split on the last space in the line.