UX fixes: fact table SQL editing, paginated metric and member lists

[jdorn]

Features and Changes

• Always show fact table SQL on the page instead of collapsing by default and show next to columns
• "Edit SQL" link for fact tables now directly opens the SQL editor instead of requiring a 2nd click
• You no longer need to specify Identifier Types when editing a fact table. They are detected automatically from the SQL that is entered.
• Add pagination to several pages: Metrics, Members, Fact Table columns, Fact Table filters, Reports
• Update README for front-end package documenting new pagination options and fixing outdated form info

[lukesonnet]

Yeah, maybe this should be a little bit dynamic, dependent on the length of the SQL? Not sure how hard that is.