Add examples in readme about how to use callbacks
fix typo in docs
MigrationShell extends AppShell
added App in MigrationsPanel
Merge pull request #102 from designway/master

MigrationShell extends AppShell, App dir added to MigrationsPanel
Rename table didn't use table prefix

In CakeMigration, alter table did not call fullTableName. 
This was causing lost of table prefix.
Merge pull request #110 from lucasgameiro/bug-fix

Rename table didn't use table prefix