Update nginx to newest version.

src/hst_autocompile.sh

@@ -9,7 +9,7 @@ GIT_REP='https://raw.githubusercontent.com/hestiacp/hestiacp/master/src/deb'
 
 # Set Version for compiling
 HESTIA_V='0.9.8-24_amd64'
-NGINX_V='1.15.6'
+NGINX_V='1.15.7'
 OPENSSL_V='1.1.1'
 PCRE_V='8.42'
 ZLIB_V='1.2.11'
@@ -292,4 +292,4 @@ if [ "$HESTIA_B" = true ] ; then
   # clear up the source folder
   rm -r hestia_$HESTIA_V
   rm -r hestiacp-master
-fi
+fi