remove MVHub::Utils::yyyy_mm_dd_to_mm_dd_yyyy

[Dan MacNeil]

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  affects mvhub
  assignee saroun-sek
  assignee seancron
 importance low
 status confirmed
 tag refactor
 done

It looks like:

 MVHub::Utils::yyyy_mm_dd_to_mm_dd_yyyy

can be replaced with: the sql function: to_char

see:
http://stackoverflow.com/questions/126897/what-is-the-equivalent-of-the-sqlite-datetime-function-in-postgresql

in various queries like:

 PROGRAM_X_AGENCY_PROGRAM_ID

then quite a lot of code can be removed
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