Rebase boot files from ubuntu (#33)

- Update boot creation script used by grub
- Update grub config
- Add desktop file for release upgrade

etc/mamolinux/10_linux

@@ -60,7 +60,11 @@ case ${GRUB_DEVICE} in
   ;;
 esac
 
-: ${GRUB_CMDLINE_LINUX_RECOVERY:=single}
+if [ -x /lib/recovery-mode/recovery-menu ]; then
+    : ${GRUB_CMDLINE_LINUX_RECOVERY:=recovery}
+else
+    : ${GRUB_CMDLINE_LINUX_RECOVERY:=single}
+fi
 
 # Default to disabling partition uuid support to maintian compatibility with
 # older kernels.
@@ -143,11 +147,6 @@ esac
 
 title_correction_code=
 
-if [ -x /lib/recovery-mode/recovery-menu ]; then
-    GRUB_CMDLINE_LINUX_RECOVERY="${GRUB_CMDLINE_LINUX_RECOVERY} recovery"
-else
-    GRUB_CMDLINE_LINUX_RECOVERY="${GRUB_CMDLINE_LINUX_RECOVERY} single"
-fi
 if [ "$ubuntu_recovery" = 1 ]; then
     GRUB_CMDLINE_LINUX_RECOVERY="$GRUB_CMDLINE_LINUX_RECOVERY nomodeset"
 fi

etc/mamolinux/grub

@@ -6,7 +6,7 @@
 GRUB_DEFAULT=0
 GRUB_TIMEOUT_STYLE=hidden
 GRUB_TIMEOUT=10
-GRUB_DISTRIBUTOR=`lsb_release -d -s | cut -d " " -f1 2>/dev/null || echo Debian`
+GRUB_DISTRIBUTOR=`( . /etc/os-release; echo ${NAME:-Ubuntu} ) 2>/dev/null || echo Debian`
 GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
 GRUB_CMDLINE_LINUX=""
 GRUB_BACKGROUND="/usr/share/backgrounds/grub/comet.jpg"

usr/share/applications/mamolinux-release-upgrade.desktop

@@ -0,0 +1,11 @@
+[Desktop Entry]
+Name=MamoLinux Release Upgrader
+GenericName=MamoLinux Release Upgrader
+Comment=Upgrade MamoLinux to next availavle release
+Exec=do-release-upgrade --allow-third-party --frontend=DistUpgradeViewGtk3
+Icon=system-software-update
+Terminal=false
+Type=Application
+Categories=System;Settings;
+X-Ubuntu-Gettext-Domain=update-manager
+X-Unity-IconBackgroundColor=#4c9e39