deskutils/easystroke: Update, take maintainership

• Move to github
• Use last upstream commit, which includes fixes not present in release
• Properly use grettext and intltool
• Install appdata file provided in upstream repository
• Fix error in desktop file [1]
• Point WWW to github page
• Import patch to fix sporadic crash [2]
• Sort plist
• Take maintainership

obtained from: https://github.com/thjaeger/easystroke/pull/19/commits/a255b2af291a494ad43b9de9c891613eb2bb6027 [1],

		https://github.com/thjaeger/easystroke/pull/10/commits/140b9cae66ba874bf0994eea71210baf417a136e [2]