Resonator on map
Change:
Add "RESONATOR_DISPLAY_ZOOM_LEVEL" to control minimum zoom level resonator will display
Add layerGroup "resonatorsLayers" to draw resonators on it.
Add "window.resonators" to store references to resonators on map

Resonator will have guid of portal with ".11" or ".12" replaced with ".r0"~".r7"
Add function "window.renderResontor" to draw resonators (use sorgo's code [sorgo](https://github.com/sorgo))
"window.renderPortal" will call "window.renderResontor" before add portal to portalsLayers
Change "window.removeByGuid" to handle resonators
Change "window.cleanUp" to handle resonators cleanup
fix #79 and part of #39
Move resonator layer back to layerGroup "portalsLayers",
to make it work with portal level filter.
And modify cleanup code to work with this change.
fix fields not being cleared from the map if they weren’t used for field counting
Code cleanup and minor change
Change:
Code cleanup
Loop over all portalsLayers when delete resonator
fix 'report issue' for places with single or double quotes in their names. Fixes #68
Resonators deletion of portal move
Move Resonators deletion to 'remove' event of portal
rename expand here as well
Resonators deletion of zoom level move
Change:
Move resonators deletion to 'zoomend' event of map.
Some clean up of code.
Change guid format of resonator
Change:
Guid format of resonator change to following,
[portal guid]-resonator-[slot]

Some code cleanup
Comment correction
Correct comment of "portalResonatorGuid"
Add contributor
Add [sorgo](https://github.com/sorgo) as contributor for his rendering code.
fix #74
fix missing space
likely fix #80
hack range must obviously be larger than 35m if I’m seeing portals with avg reso dist being 39m
Change resonators render min zoom level and radius
Change:
Resonators render minimum zoom level 16 -> 17
Resonators render radius 4 -> 3
Some cleanup and performance tuning
Merge pull request #78 from Xelio/patch-map-resonator

draw resonators for each portal on map for high zoom levels (17+). Patch by Xelio.
catch being logged in, but stating that the account is not allowed to play ingress.

It will simply reload the page right now after 10s. The user is probably faster to do this
manually, but it solves the problem where the tab is opened and forgotten.