Material: cards, fix name and licence of the new cards

src/Mod/Material/StandardMaterial/PA6-Generic.FCMat

@@ -1,5 +1,5 @@
-; My new amazing material file
-; (c) 2015 Your Name (CC-BY 3.0)
+; PA6-Generic
+; (c) 2019 Uwe Stöhr (CC-BY 3.0)
 ; information about the content of such cards you can find here:
 ; http://www.freecadweb.org/wiki/index.php?title=Material
 

src/Mod/Material/StandardMaterial/PET-Generic.FCMat

@@ -1,5 +1,5 @@
-; My new amazing material file
-; (c) 2015 Your Name (CC-BY 3.0)
+; PET-Generic
+; (c) 2019 Uwe Stöhr (CC-BY 3.0)
 ; information about the content of such cards you can find here:
 ; http://www.freecadweb.org/wiki/index.php?title=Material
 

src/Mod/Material/StandardMaterial/PLA-Generic.FCMat

@@ -1,5 +1,5 @@
-; My new amazing material file
-; (c) 2015 Your Name (CC-BY 3.0)
+; PLA-Generic
+; (c) 2019 Uwe Stöhr (CC-BY 3.0)
 ; information about the content of such cards you can find here:
 ; http://www.freecadweb.org/wiki/index.php?title=Material
 

src/Mod/Material/StandardMaterial/PP-Generic.FCMat

@@ -1,5 +1,5 @@
-; My new amazing material file
-; (c) 2015 Your Name (CC-BY 3.0)
+; PP-Generic
+; (c) 2019 Uwe Stöhr (CC-BY 3.0)
 ; information about the content of such cards you can find here:
 ; http://www.freecadweb.org/wiki/index.php?title=Material
 

src/Mod/Material/StandardMaterial/PTFE-Generic.FCMat

@@ -1,5 +1,5 @@
-; My new amazing material file
-; (c) 2015 Your Name (CC-BY 3.0)
+; PTFE-Generic
+; (c) 2019 Uwe Stöhr (CC-BY 3.0)
 ; information about the content of such cards you can find here:
 ; http://www.freecadweb.org/wiki/index.php?title=Material
 

src/Mod/Material/StandardMaterial/PVC-Generic.FCMat

@@ -1,5 +1,5 @@
-; My new amazing material file
-; (c) 2015 Your Name (CC-BY 3.0)
+; PVC-Generic
+; (c) 2019 Uwe Stöhr (CC-BY 3.0)
 ; information about the content of such cards you can find here:
 ; http://www.freecadweb.org/wiki/index.php?title=Material