#ACT-1426: Fixing behavior in nested multi-instance tasks.
Added identity-links to history + task/process query filtering involved
Merge pull request #66 from marcusk24/master

DbSqlSession: improve debug logging, readability.
Merge pull request #59 from henningp/master

#ACT-1426: Nested multi-instance activities did not work
Fixed: ACT-1588 Native query support paging, support all databases
improve parameter [orderBy] in native query paging for db2 and mssql
Fixed: ACT-1588 Native query support paging, support mssql and db2
Add text flow when generating diagram, and property labelFontName can be set in ProcessEngineConfiguration.
Fixed userguide for REST: Create User should PUT, but POST
Merge pull request #69 from henryyan/rest-method-create-user

Fixed userguide for REST: Create User should PUT, but POST
Merge pull request #68 from henryyan/generate-text-on-label

Add text flow when generating diagram
Merge pull request #67 from henryyan/ACT-1588

Act-1588 Native query support paging
Improved classloading of expressions for osgi
Merge branch 'master' of https://github.com/Activiti/Activiti
Added docs for task-comments + added task-events to REST
Fix for ACT-1664
Merge branch 'master' of https://github.com/Activiti/Activiti
Fix for ACT-1523
Fix Activiti version
native query for ProcessDefinition