NX-156: fix REST-related split packages
NX-156: fix indexer-related split packages (excludes generated model classes)
Merge pull request #314 from sonatype/NX-156-refactor-split-packages

REVIEW: NX-156: refactor split packages
Revert "Merge pull request #311 from sonatype/401-error-page" due to build failures (cause: error page cannot be webresource, as it accepts only GETs).

This reverts commit 75f0a0e0b9db99953a4aa3ec3c03a6750fa24e21, reversing
changes made to 7cbf810e804fa9a88c84b324275f9487fbd2f10a.
Merge remote-tracking branch 'origin/master' into rapture