add FIXME for noisy debug logs that lack context
[NEXUS-5814] Include indexed artifact/pom path in exception being thrown when indexing an artifact
[NEXUS-5814] Catch any exception to avoid breaking of indexing process
[NEXUS-5806] Add server configuration segment for rest api in nexus client core
[NEXUS-5808] Use sisu-emailer 1.7.2-SNAPSHOT
[NEXUS-5808] Do not even send email if configured SMTP settings are the default ones (=SMTP not configured)
[NEXUS-5808] Improve logged/exception message
Cleaned up.

Changes:
* introduced LevelDB "provider" plugin with some helpers
* LevelDB AttributeStorage moved out (just as LevelDB itself) from core
* LevelDB AttributeStorage is now configurable via nexus.properties (default is LS)
[NEXUS-5808] Do not compare default password in order to send or not email
[NEXUS-5814] Log artifact path also when a pom is not present while indexing
Merge pull request #83 from sonatype/NEXUS-5808-log-email-failure

REVIEW: [NEXUS-5808] Log all emailing exceptions
Reformat/Optimize imports
Merge pull request #85 from sonatype/reformat-2

Reformat/Optimize imports
update nexus-plugin-bundle-configuration to use banned muck
[NXCM-5432] Make possible to avoid SiestaModule in unwanted cases

As for example being discovered in UTs
forward port since tags to 2.6.1 for items merged to nexus-oss-2.6.1.x branch
Merge branch 'master' into update-nexus-bundle-plugin-configuration
simplify nexus-plugin bundle configuration w/banned dependency
Drop uneeded classpathDependencyExcludes configurations, banned muck covers all this stuff.
Add Nexus 2.7 client conditions