create class CustomShowDialog
add variables in CustomShowDialog
add method onStart
add methos shouldShowRateDialog
add method clearSharedPreferences
add method setOpOut
add method printStatus
add onStart in RateMe Project
apply formatting androidSX
call clear preferences in button close
call setOpOut in button rate
add JavaDoc in Library
add onStart in SampleProject
remove javadoc
remove printstatus
change class name to RateMeDialogTimer
Merge pull request #11 from androidsx/custom-show-dialog

Custom show dialog