Fix compile error due to rename of newHashDatabase().
Added new regression test for HashDB JNI operations.
Fix merge issue
lookupIndexForHashDatabaseExists was renamed.
Rename "Create Database" button to "New Database" and change icon to be consistent with new keyword list.
Rearrange the HashDb mgmt buttons to be more consistent with Keyword List mgmt layout.
Do not change the file path when the user is trying to make a new database.
Merge with Sam's work