updates/changes to glider files
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Merge branch 'master' of git://github.com/NickAlmonte/marine-integrations into glider
Rolled back move of common particle parameters.
Changed internal timestamp to zulu time for ctdgv
Removed unused test files, updated engineering and flort glider test results with zulu timestamps.
reduced logging by removing log message from inside loop
Added parad zulu timestamps for testing.
Updated flord to include zulu format internal timestamps in results files.
Merge pull request #183 from petercable/assert_particle

reduced logging by removing log message from inside loop
Merge pull request #182 from petercable/metalogger

updated stack peeking
Removed more unused engineering files.
Removed old backup metadata files.
Added metadata particle to engineering glider and updated tests.
Updated glider tests for engineering metadata particle.
Removed converting 0 lat/lon to NaN, and prepended zeros to allow conversion.
Merge pull request #184 from emilyhahn/glider

Glider Updates - ctdgv, dosta, flort, flord, parad, and engineering
Removed missing parameter warning from glider parser.
Merge pull request #185 from emilyhahn/glider

Removed missing parameter warning from glider parser.
param_dict.set_default() will not accept default values which evaluate
to False.
Merge pull request #186 from petercable/metalogger

param_dict.set_default() will not accept default values which evaluate to False