Jetty upgrade to version 8
OPAL-2093
OPAL-2188: Sort files with folders always first
OPAL-2188: initialize fileColumnName
Merge pull request #398 from emorency/OPAL-2188-Sort-Files

OPAL-2188: Sort files, always show folders first
OPAL-2188: Using ComparisonChain
Merge pull request #399 from emorency/OPAL-2188-Sort-Files

OPAL-2188: Using ComparisonChain
Upgrade OrientDB and start it using @PostConstruct
Merge branch 'dev'
OPAL-2188: Simplifying sort ascending/descending call
Merge pull request #400 from emorency/OPAL-2188-Sort-Files

OPAL-2188: Simplifying sort ascending/descending call
Upgrade OrientDB and start it using @PostConstruct
Merge branch 'master' of github.com:obiba/opal