network/NetworkManager: Minor default config changes

This commit sets dhcpcd as the dhcp client for NM to use and adds
some comments to /etc/NetworkManager/nm-system-settings.conf so
that it's clearer where to look for more information...
Thanks to Dan Williams (NM Upstream Dev) for help with this.

Signed-off-by: Robby Workman <rworkman@slackbuilds.org>

network/NetworkManager/NetworkManager.SlackBuild

@@ -24,7 +24,7 @@
 
 PRGNAM=NetworkManager
 VERSION=${VERSION:-0.8.1}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
@@ -98,6 +98,8 @@ for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; r
 mv $PKG/etc/rc.d/rc.networkmanager $PKG/etc/rc.d/rc.networkmanager.new
 
 # Add a 'starter' nm-system-settings.conf file
+# This sets the hostname (during postinstall) to match the system's name
+# and defines dhcpcd as the dhcp client to use
 mkdir -p $PKG/etc/NetworkManager
 cat $CWD/nm-system-settings.conf.new > \
     $PKG/etc/NetworkManager/nm-system-settings.conf.new

network/NetworkManager/nm-system-settings.conf.new

@@ -1,5 +1,10 @@
+# /etc/NetworkManager/nm-system-settings.conf
+#
+# See NetworkManager.conf(5) for more information on this file
+
 [main]
 plugins=keyfile
+dhcp=dhcpcd
 
 [keyfile]
 hostname=yourhostname