- api supports refresh-instance
- web support via modal's "Refesh" button.

orchestrator DB
sqlutils - GetDB returns bool indicating whether DB returned from cache.
added about, faq pages. Improved home page

web: supports start-slave, stop-slave from instance dialog

Added maintenance info to instance-problems

(gives more visibility)

direct lag, this one measures absolute lag vs. topology master).
instance_dao reads and supports both metrics
instance-problems: added secondary sorting
Testing fail to move upon maintenance/problem (only tested on
move-below)

draggable classes)

http://bugs.jqueryui.com/ticket/3740)

visualization change in hovering over instance 

check, old check, not replicating, lag)
- in backend (err produced)
- in web (not droppable)

removed from tree visualization)

supporting delay after START SLAVE so as to give the salev a chance to
connect to its master

- created table, object, dao
- maintenance_dao audits any successful begin/end maintenance
- instance_topology audits any successful move-up/move-below
- added api/audit (currently very simplistic, just recent operations)
- added web/audit (based on simplistic api)
db: updated schemas

cluster added to instance modal, and is clickable

absolute" issues)

from showing up

- ordering by problem severity
- better collapsible

- JS now better analyzes problems
instance:
- added IsRecentlyChecked
instance_dao:
- measuring seconds_since_last_checked to infer IsUpToDate and
IsRecentlyChecked
- fixed chrome issue with JS default params

orchestrator.js. This includes rendering the instance element, creating
the topology map & tree, merging maintenance instances and more.

instance, returning nil instance). It's OK to get the nil instance, we
just then don't dereference the pointer...