tree be4b7dce64d9ccd5545c7dacb839ff0eaccc7291
parent 3f771978e044877b963d989d47fc3d761c630b5e
author David Ostrovsky <david@ostrovsky.org> 1478761378 +0100
committer David Ostrovsky <david.ostrovsky@gmail.com> 1478769030 +0000

PolyGerrit: Don't create development servlets in production code path

To satisfy Guice wiring, it's not necessary needed to create a dummy
provider that is not actually used. Use @Nullable instead to bind
to Provider that optionally returns null. This simplifies the code
in development servlets and avoid eager created (unused) development
instances in production code path.

Also rename the development servlets with Dev suffix to make the intent
more clear.

This is a preparation change to abstract the build system and support
Bazel in addition to Buck.

Change-Id: I9c2a7b61509de446e292af9cb0217d24547bbbf5