Singular DZ Marker

Preparation for searching for a DZ on google maps. A marker per dz was
too much.
Custom DZ finder
Refactor to jQuery

Unification.
Fix DZ Finder appearing on top temporarily

Just let it flicker at the bottom, no biggie.
Cookie wipeout function.

Call it if something is wrong with cookies.
Custom DZ coordinates persistence
Localization-by-default: less redundance.

Theoretically we can get rid of enResources entirely. But...
Update dz finder text on menu item selection.
Merge branch 'dz-finder' of https://github.com/hr0nix/BlueSkies.git
Save custom dz name. Also save its location after every drag.
Some exotic locations.
A little bit less ambitious menu
Dz selection menu improvements.
Merge branch 'dz-finder' of https://github.com/hr0nix/BlueSkies.git (sorry dunno how to rebase in VS)
Merge branch 'dz-finder'

Conflicts:
	scripts/blueskies.js