Do not clear unused sector file list each time through the addUnusedSector() method.
Added generic description attribute to the Blackboard.
Removed unnecessary and erroneous clearing of vector in TskImgDBPostgreSQL::addUnusedSector().
Merge branch 'hash-description'
Added TSK_TOOL_OUTPUT artifact and method to JNI to get currently used artifact types
Adds newlines to some error messages
Added new Artifacts & Attributes for Contacts, CallLogs, Messages and Calendar Entries.
Merge pull request #198 from jessek/srch_strings_error_msgs

Adds newlines to some error messages
Added new Artifacts & Attributes for Contacts, CallLogs, Messages and Calendar Entries.
Merge branch 'master' of https://github.com/raman-bt/sleuthkit

Conflicts:
	bindings/java/src/org/sleuthkit/datamodel/BlackboardAttribute.java
Merge pull request #199 from raman-bt/master

Added new Artifacts & Attributes for Contacts, CallLogs, Messages and Ca...
Added temporary error observer code to support specila handling of image read errors without changing existing APIs
Corrected typograpical error in SleuthkitCase message string
Merge pull request #200 from rcordovano/master

Added temporary special handling of image read errors preliminary to API change to allow such errors to be distinguished