Pull request: 2250 config reload fix

Merge in DNS/adguard-home from 2250-config-reload-fix to master

Closes #2250.

Squashed commit of the following:

commit 928f28a0732c14f24576de02d0a9fcd34f484c63
Author: Vladislav Alekseev <vldrus@gmail.com>
Date:   Mon Nov 2 02:53:51 2020 +0300

    TLS: use correct config on reload after receiving SIGHUP

commit 9e10d84cf9fbf3298d7f426903dfa4f20f39024b
Author: Vladislav Alekseev <vldrus@gmail.com>
Date:   Mon Nov 2 02:52:32 2020 +0300

    Service: reload config (-s reload): fix for parsing application pid if 'ps' return space padded value

internal/home/service.go

@@ -104,7 +104,7 @@ func sendSigReload() {
 		return
 	}
 
-	pid, err := strconv.Atoi(parts[0])
+	pid, err := strconv.Atoi(strings.TrimSpace(parts[0]))
 	if err != nil {
 		log.Error("Can't read PID file %s: %s", pidfile, err)
 		return

internal/home/tls.go

@@ -136,6 +136,10 @@ func (t *TLSMod) Reload() {
 	t.certLastMod = fi.ModTime().UTC()
 
 	_ = reconfigureDNSServer()
+
+	t.confLock.Lock()
+	tlsConf = t.conf
+	t.confLock.Unlock()
 	Context.web.TLSConfigChanged(tlsConf)
 }