Do not assume that "." is in "$PATH"

[liblit]

Putting . in $PATH creates certain security concerns, so many of us avoid doing that. Without . in $PATH, running a gradlew script in the current directory requires an explicit relative path: ./gradlew, not simply gradlew.

[liblit]

The Travis CI build is failing, reporting Invalid reporter: gangsta . I do not believe that this failure has anything to do with the changes I am proposing here, though. I hope that you will still consider accepting these proposed changes in spite of the Travis CI failure.