paginate defs

[ckingbailey]

defs count is getting so numerous as to tax the browser when rendering full defs table.

break defs table up into pages.

this will bugger some things up and take some extra work:

• I believe our mysql connection class can handle pagination. more research necessary
• csv export will need to work differently: pass a query to an endpoint and have the endpoint handle it, rather than passing raw json data to endpoint
• filtration may need some changes. testing necessary