Rewrite router using starlette#17

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RealOrangeOne wants to merge 10 commits intomasterfrom

starlette-router

Commits on Nov 28, 2019

Commits on Dec 5, 2019

Ensure querystring params are also passed upstream
RealOrangeOne
committed

Commits on Dec 6, 2019

Maintain client between connections
RealOrangeOne
committed

Commits on Dec 17, 2019

Set no timeout
RealOrangeOne
committed

Commits on Jan 24, 2020

Merge remote-tracking branch 'origin/master' into starlette-router
RealOrangeOne
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