Fix bug# 321 - Crash on wrong password and memory leaks when exit without success.
Cleanup - Rename variables, remove unnecessary code, Amend password dialog info
New Command: Tools -> Change Encrypted Password
Merge pull request #106 from stef145g/develop

New command: Change Encrypted password
Merge branch 'develop' of https://github.com/moneymanagerex/moneymanagerex into develop