Merge pull request #266 from openziti/replace-select

replace select() with poll() to avoid `fd_set` 1024 limit

Merge pull request #265 from openziti/fix-stream-addr-connect

Fix stream addr connect

Merge pull request #262 from openziti/prevent-reentry-on-failed-req

avoid re-entering fail_active_request()

Merge pull request #261 from openziti/do-not-add-slash-before-empty-path

no slash needed if path is empty

Merge pull request #260 from openziti/http-prefix-2

fix inconsistent root slash handling

Merge pull request #259 from openziti/more-robust-ci-caching

use vpckg binary caching

Merge pull request #257 from openziti/zlib-linked-directly

zlib is now linked with standard method

Merge pull request #254 from openziti/android-load-default-ca

load system CA on android from proper location

Merge pull request #255 from openziti/openssl-allow-partial-chains

openssl: allow partial chain verification

Merge pull request #253 from openziti/fix-set-own-cert-leak

remove extra up_ref in set_own_cert()