* stable-3.1:
e2e-tests: Introduce example to test local setups
e2e-tests: Foster IntelliJ for Scala and build.sbt
e2e-tests: Sort and update some .gitignore entries
e2e-tests: Expand ssh key generation documentation
e2e-tests: Document example test project existence
Highlight WORKSPACE as python
Highlight BUILD.bazel as python
e2e-tests: Remove the note after sbt website fixed
Change-Id: I5c856f9c650e2d44655519b6b318ef41f6d71815
9b020576bf