implemented isOnline() page method
show offline mode message
check if is logged in using ajax
save authenticated data into storage. reload every minute.
dont do pie request when in offline mode
composer update
remove menu elements not available in offline mode
use post in list request
remove unused navigation entry
store dataList in storage
disable list header in offline mode
dont do transaction exist if in offline mode
using post
save new transactions into storage
add timeout when saving locally
save local transactions
change cache manifest file
fix list edit
fix transaction delete
fix offline mode