In case of malformed query string where there is `=` on the value, handle
this character as part of the value instead of throwing an error.
The following query string should no longer crash a program:
key=value&key2=x=1
It will be interpreted as [("key", "value"), ("key2", "x=1")]
This is correct according to latest WhatWG's HTML5 specification
recarding the urlencoded parser:
https://url.spec.whatwg.org/#concept-urlencoded-parser
Older behavior can be restored using the -d:nimLegacyParseQueryStrict
flag.
* improve turi tests: js, vm; merge tdecodequery.nim
* improve test
* add test in js, improve test
* remove matrix: "--styleCheck:hint --panics:on"
* fixup
