Nov 9, 2015

version 1.2.5:
1. modify a fatal bug that first lauch causes shotdown. (Thanks to my dad)
version 1.2.4:
1. now clicking the button of enter inputs your writing immediately.
2. modify some bugs.
version 1.2.3:
1. backup data in sdcard in case the data is cleared accidently.
2. double confirm before deleting.
3. modify some bugs.