appimage-starter (#42)

create program launcher;
reduced size of appimage;
download of appimages working(?)

Co-authored-by: Dominik Demuth <dominik.demuth@physik.tu-darmstadt.de>
Reviewed-on: #42

src/gui_qt/main/mainwindow.py

@@ -23,6 +23,7 @@ from ..io.fcbatchreader import QFCReader
 from ..io.filedialog import *
 from ..lib import get_icon, make_action_icons
 from ..lib.pg_objects import RegionItem
+from ..lib.starter import make_starter
 from ..math.evaluation import QEvalDialog
 from ..math.interpol import InterpolDialog
 from ..math.mean_dialog import QMeanTimes
@@ -30,7 +31,7 @@ from ..math.smooth import QSmooth
 from ..nmr.coupling_calc import QCoupCalcDialog
 from ..nmr.t1_from_tau import QRelaxCalc
 from .._py.basewindow import Ui_BaseWindow
-from ..lib.utils import UpdateDialog, open_bug_report, Updater
+from ..lib.utils import UpdateDialog, Updater
 
 
 class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
@@ -1059,3 +1060,7 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
         self.status.setText('Autosave...')
         NMRWriter(self.management.graphs, self.management.data).export(self.__backup_path)
         self.status.setText('')
+
+    @QtCore.pyqtSlot(name='on_actionCreate_starter_triggered')
+    def create_starter(self):
+        make_starter(os.getenv('APPIMAGE'))