Updates version number to 0.4.189073153.20180314.
Updates version number to 0.4.189073153.20180314.

Significant changes:
- Improved handling of local_repositories.
- Post-build actions now use copy-on-write on APFS volumes.
- Added ability to find dSYM bundles via DBGShellCommands.
- Corrected issue with dSYM bundles opted in through bazelrc.

PiperOrigin-RevId: 189073941

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