fixed lxml missing on PY4A modules
removed old file
changes in the layout
fixe on_pause issues on android
added button for not saving the password
fixed a bug on service starting 2 times
changed logout button
updated threadcomm
fixed notification error
fixed not saving data during login
fixed error of multiplied number of Materias
change login layout
added login check
major changes on class design
fixed some major bugs
fixed error msg on server
Merge branch 'dev'