Squashed 'vendor/assets/javascripts/d3/plugins/' changes from 5c6e4f0..c690548

c690548 Add d3.geo.peirceQuincuncial.invert.
eee254f Improve d3.geo.guyou.invert.
f6a9375 Fix d3.geo.guyou and add inverse.
c2481ad Optimise d3.geo.eisenlohr.invert.
b8acab6 Tweak d3.geo.eisenlohr.invert.
4e3778b Simplify d3.geo.eisenlohr.invert.
f3bb578 Better initial estimate.
275bd43 Improve d3.geo.[rectangular]Polyconic.invert.
6d9387b Add d3.geo.rectangularPolyconic.invert.
0bd760c Add d3.geo.vanDerGrinten4.invert.
02c194c Simplify.
ae27729 Add d3.geo.berghaus.invert.
c50d85f Simplify.
7be6581 Add d3.geo.hammerRetroazimuthal.invert.
982974f Add d3.geo.wiechel.invert.
c8e60ea Tweak hyperbolic functions.
87cca69 Add missing functions.
f0fd57d Simplify d3.geo.vanDerGrinten3.
b140234 Add d3.geo.vanDerGrinten3.invert.
335ddd3 Add d3.geo.vanDerGrinten2.invert.
e9b1b4a Improve d3.geo.laskowski.invert.
8786e6c Add d3.geo.craig.invert.
f19135e Code formatting.
8efd7f2 Add d3.geo.eisenlohr.invert.
473b12b Fix d3.geo.august and add inverse.
f44f10c Simplify.
8f741d8 Simplify.
3b88ac4 Add closed-form lagrange.invert.
116691f Simplify slightly.
528846f Add d3.geo.lagrange.invert.
8629cdb Add d3.geo.twoPointEquidistant.invert.
375f8a1 Add d3.geo.twoPointAzimuthal.invert.
6490412 Add tests for d3.geo.modifiedStereographic.
7c8363a Simplify.
c2740ac Add d3.geo.modifiedStereographic.invert.
1ee2fa2 Add Modified Stereographic.
6cc82ca Code formatting.
1fd80b6 Add Two-Point Azimuthal.
6f6ca51 Use ε when detecting equirectangular case.
d1cfe5a Add Times.
ad00515 Add Rectangular Polyconic.
fe88487 Add Van der Grinten II and III.
1b52ed4 Fix Werner: d3.geo.bonne().parallel(90°).
fcce20c Link to Fahey example.
dd358a2 d3.geo.conic{Conformal,Equidistant}: equator.
5a20e6d Code formatting.
7f82776 removed traverse
de76740 Add Fahey.
a4f401b d3.geo.conicConformal: support equal parallels.
10e4a40 d3.geo.conicEquidistant: support equal parallels.
b063a49 Fix longscroll.js scrollIntoView issue.
bc2f136 Fix occasional NaNs in vanDerGrinten4.
f901426 Update keybinding with improvements from iD project

git-subtree-dir: vendor/assets/javascripts/d3/plugins
git-subtree-split: c690548cb4173f5edf312133f364e949482c3821
Merge commit 'a24de8db79678f99734fdb87c869aa80905d8d85'

* commit 'a24de8db79678f99734fdb87c869aa80905d8d85':
  Squashed 'vendor/assets/javascripts/d3/plugins/' changes from 5c6e4f0..c690548
Expose bundled plugins version