Feature: add php version information in prompt
Feature: add php version information in prompt

Original prompt:

    ant@someone $

After phpbrew switching:

    ant@someone $ phpbrew use php-5.4.0
    (PHP 5.4.0)ant@someone $

When off, it will back to original prompt:

    (PHP 5.4.0)ant@someone $ phpbrew off
    ant@someone $

There is a variable named "PHPBREW_SET_PROMTP" in $HOME/.phpbrew/bashrc.

If "PHPBREW_SET_PROMTP=1", that means "ENABLE", otherwise means
"DISABLE". Default is "PHPBREW_SET_PROMTP=1" (ENABLE).

hechunwen/phpbrew,mengzyou/phpbrew,williamn/phpbrew,pierredup/phpbrew,pierredup/phpbrew,hechunwen/phpbrew,phpbrew/phpbrew,konomae/phpbrew,pierredup/phpbrew,wellic/phpbrew,dduca-sugarcrm/phpbrew,svetlyak40wt/phpbrew,phpbrew/phpbrew,davidfuhr/phpbrew,davidfuhr/phpbrew,viniciusferreira/phpbrew,kayyyy/phpbrew,davidfuhr/phpbrew,pierredup/phpbrew,wellic/phpbrew,mengzyou/phpbrew,dduca-sugarcrm/phpbrew,svetlyak40wt/phpbrew,morozov/phpbrew,williamn/phpbrew,zonuexe/phpbrew,davidfuhr/phpbrew,hechunwen/phpbrew,zonuexe/phpbrew,svetlyak40wt/phpbrew,pinkbigmacmedia/phpbrew,pinkbigmacmedia/phpbrew,davidfuhr/phpbrew,pinkbigmacmedia/phpbrew,wellic/phpbrew,svetlyak40wt/phpbrew,wellic/phpbrew,konomae/phpbrew,kayyyy/phpbrew,phpbrew/phpbrew,konomae/phpbrew,williamn/phpbrew,kayyyy/phpbrew,kayyyy/phpbrew,dduca-sugarcrm/phpbrew,mengzyou/phpbrew,dduca-sugarcrm/phpbrew,viniciusferreira/phpbrew,konomae/phpbrew,mengzyou/phpbrew,viniciusferreira/phpbrew,viniciusferreira/phpbrew,morozov/phpbrew,williamn/phpbrew,pinkbigmacmedia/phpbrew,zonuexe/phpbrew,hechunwen/phpbrew,zonuexe/phpbrew