Update compat

[JackDunnNZ]

Saw the new release got held up in the registry and hoped this might help

Here were the packages I got when installing on Julia 1.2

BinDeps v1.0.0
Compat v2.2.0
HTTPClient v0.2.1
LibExpat v0.5.0
Libz v1.0.0
URIParser v0.4.0

and on Julia 1.3 the only difference was LibExpat v0.6

I tried to figure out some reasonable bounds:

• BinDeps 1.0 dropped support for Julia 0.6
• Compat 2 or 3 seems reasonable and not overly restrictive
• HTTPClient only has versions 0.1-0.2 and hasn't been updated in years
• LibExpat 0.5 was the first release to drop Julia 0.6 support, and 0.6 has just come out
• Libz 1.0 was the first to support 0.7+
• URIParser 0.4 was the first to drop Julia 0.6, and is the most recent release

[timholy]

LGTM, but I don't know enough about this package to feel confident about merging this.

[nalimilan]

I'm not sure either but your analysis sounds reasonable...