cache id->rid pairs
cache the tag permissions
tuning of orientdb params
let's try to use connection pooling.....
deactivated the 1st level cache due json serialization problems
Upgrade to logback 1.1.2
due this issue that slows down the server under heavy load: http://jira.qos.ch/browse/LOGBACK-268?page=com.atlassian.jira.plugin.system.issuetabpanels:changehistory-tabpanel
Merge pull request #82 from giastfader/reactive

Some optimizations
Merge pull request #582 from giastfader/opti

Optimizations