Upgrade to latest EtherCalc (0.20200505.0)

We're four years behind on EtherCalc releases, and suddenly hitting
a crash exception which was fixed in a newer release three years
ago. According to the current readme we're running plenty new enough
dependencies, so this should be a drop-in replacement. Of course
we'll make an extra database backup immediately before hand, just to
be safe.

Change-Id: Iec59692fea0a1e31e1bd7b8e03145f7384d9e59b

manifests/apache.pp

@@ -31,7 +31,7 @@ class ethercalc::apache (
     ensure => present,
   }
 
-  include ::httpd
+  include httpd
   ::httpd::vhost { $vhost_name:
     port     => 443,
     docroot  => $docroot,

manifests/init.pp

@@ -14,7 +14,7 @@ class ethercalc (
   $base_install_dir = '/opt/ethercalc',
   $base_log_dir     = '/var/log',
   $ethercalc_user   = 'ethercalc',
-  $ethercalc_version= '0.20161220.1',
+  $ethercalc_version= '0.20200505.0',
   # If set to system will install system package, otherwise
   # we try to choose one based on the host platform
   $nodejs_version   = undef,
@@ -83,7 +83,7 @@ class ethercalc (
   anchor { 'nodejs-package-install': }
 
   if ($use_nodejs_version != 'system') {
-    class { '::nodejs':
+    class { 'nodejs':
       repo_url_suffix        => $use_nodejs_version,
       legacy_debian_symlinks => false,
       before                 => Anchor['nodejs-package-install'],
@@ -139,7 +139,7 @@ class ethercalc (
       require => File['/etc/init/ethercalc.conf'],
     }
 
-    include ::logrotate
+    include logrotate
     logrotate::file { 'ethercalc_error':
       log     => "${base_log_dir}/${ethercalc_user}/error.log",
       options => [

manifests/redis.pp

@@ -7,7 +7,7 @@ class ethercalc::redis(
   $redis_password   = undef,
   $redis_version    = '2.8.4',
 ) {
-  class { '::redis':
+  class { 'redis':
     redis_port       => $redis_port,
     redis_max_memory => $redis_max_memory,
     redis_bind       => $redis_bind,