Change version of pom.xml to 2.6.2-SNAPSHOT
Fixes #3617 : correct the sql query to display last seen for a node
Merge pull request #218 from ncharles/bug_3617/dev/correct_query_used_in_node_display

Fixes #3617 : correct the sql query to display last seen for a node so that it uses an indexed field
Fixes #3622: Add a comparator for not matching a regex