Support ordering in REM, fix data visualization bug

[amcgee]

Resources can be requested with the ?order=[-]<column> syntax. So, for instance:

• /api/v0/monitors?order=name will return all monitors sorted by name in ascending order
• /api/v0/monitors?order=-name will return all monitors sorted by name in DESCENDING order
• /api/v0/monitors will return all monitors with unspecified ordering.

The manage/monitor page now requests the list of reports with ?order=timestamp so that it is guaranteed to receive the reports in the correct order - when received out of order there were issues with D3 visualization.

Internally, rem-sql translates an ordering parameter into the SQL postfix: ORDER BY <column> (ASC | DESC)

[amcgee]

Fixes #65

[amcgee]

Re-opening against Dev