hookup_tables

relates to pivotal stories "display list of pending events in a table", 75025008, and "display list of active/live hookups (i.e. hookups with live hangouts) in a separate table",75025492. 
On line 68 and 69, add whitespace around `=`.
On line 69, remove the parenthesis after `to_i` and add a whitespace between `-1`.

Minor issue, but the makes the code look better.