Revert "setup.py: Make closure_linter package setuptools compatible"

This reverts commit e597dfaadafa786397c0c11be933a6259f5cb216.
PEP8: Fixed E126 indent warnings
model.geo: add geographic_distance method
controllers.flight: add near flight search
flight.js: click on flight loads nearby passing flights
controllers.flight: send additional flight info with near flights
controllers.flight: don't add non-encoded fixes to dict
flight.js: add onclick InfoBox only for normal flight display
Merge pull request #17 from TobiasLohner/near_flight

Near flight
forms/pilot: Adjusted indent
flightpath: Replaced deprecated os.popen() by subprocess.Popen()
analysis: Replaced deprecated os.popen() by subprocess.Popen()
units.js: Fixed slUnits.init() function
flightpath: Added line_to_fix() function
flightpath: Simplified flight_path() function
Removed dev/ folder and scripts
Require SkyLinesPolyEncode 0.1.2
map-click-handler.js: don't catch events on transparent space
map-click-handler.js: use plane location as anchor
map-click-handler.js: move info creation into separate methods