Usbong

Invalid date

+updated: usbong_demo_tree.xml
+fixed: unable to process correctly if text in textAreaWithAnswer uses line breaks
+fixed: answer in textFieldWithAnswer and textAreaWithAnswer is also read by the machine (TTS)
+updated: usbong_demo_tree
--> fixed: typo
+removed: extra space before textArea
+updated: credits and AndroidManifest details
+fixed: transparent calendar background
--> made it dark, so that the font color (which is light) can be seen.
+updated: credits