Updates version number to 0.4.245243065.20190425.
Updates version number to 0.4.245243065.20190425.

Significant changes:
- Tree artifact outputs are now a Tulsi config setting (but still
  enabled by default).

PiperOrigin-RevId: 245246188

bazelbuild/tulsi,bazelbuild/tulsi,pinterest/tulsi,pinterest/tulsi,bazelbuild/tulsi,pinterest/tulsi,pinterest/tulsi,pinterest/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,pinterest/tulsi,bazelbuild/tulsi