Move the HTTP server files into a dedicated directory

Again, this is to tidy up the top-level directory in preparation for
de-duplicating the script functionality.

arch-template.json

@@ -13,7 +13,7 @@
             "iso_checksum_type": "{{user `iso_checksum_type`}}",
             "guest_os_type": "ArchLinux_64",
             "guest_additions_mode": "disable",
-            "http_directory": ".",
+            "http_directory": "srv",
             "boot_wait": "5s",
             "boot_command": [
                 "<enter><wait10><wait10>",
@@ -33,7 +33,7 @@
             "iso_url": "{{user `iso_url`}}",
             "iso_checksum": "{{user `iso_checksum`}}",
             "iso_checksum_type": "{{user `iso_checksum_type`}}",
-            "http_directory": ".",
+            "http_directory": "srv",
             "boot_wait": "5s",
             "boot_command": [
                 "<enter><wait10><wait10>",
@@ -55,13 +55,13 @@
             "iso_url": "{{user `iso_url`}}",
             "iso_checksum": "{{user `iso_checksum`}}",
             "iso_checksum_type": "{{user `iso_checksum_type`}}",
-            "http_directory": ".",
+            "http_directory": "srv",
             "boot_wait": "5s",
             "boot_command": [
                 "<enter><wait10><wait10>",
                 "/usr/bin/curl -O http://{{.HTTPIP}}:{{.HTTPPort}}/install-parallels.sh<enter><wait5>",
                 "/usr/bin/curl -O http://{{.HTTPIP}}:{{.HTTPPort}}/poweroff.timer<enter><wait5>",
-                "/usr/bin/curl -O http://{{.HTTPIP}}:{{.HTTPPort}}/parallels_tools.sh<enter><wait5>",
+                "/usr/bin/curl -O http://{{.HTTPIP}}:{{.HTTPPort}}/parallels-tools.sh<enter><wait5>",
                 "/usr/bin/bash ./install-parallels.sh<enter>"
             ],
             "disk_size": 20480,