started refactoring the script to be more flexible.
rewritten mysql.sh and split non-refactored code in install script
made all scripts executable
adding user and password parameters
added phpmyadmin to software installed
fixing bug for mysql user/pwd not being expanded correctly
updated bash script for basic provisioning for LAMP stack

- updated list of packages in bootstrap script
- updated apache, php and mysql provisioning script
- amended new mysql provisioning script
- removed useless php
- added new yii installation script