[ImgBot] Optimize images

[imgbot[bot]]

Beep boop. Your images are optimized!

Your image file size has been reduced by 38% 🎉

Details

File	Before	After	Percent reduction
/images/logo.png	22.90kb	12.84kb	43.91%
/images/openstreets.png	320.05kb	187.29kb	41.48%
/images/templanes.png	1,022.32kb	619.24kb	39.43%
/nycbikemap render.png	4,914.51kb	3,035.69kb	38.23%
/images/elevators.png	168.32kb	121.72kb	27.69%
/images/estrail.svg	84.41kb	83.38kb	1.23%
Total :	6,532.51kb	4,060.16kb	37.85%

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