ReCaptcha feature
ReCaptcha config from setup script

Added config setting to be available from the ./setup script. Captcha
public and private keys are added in the Features->Security tab, the
captchaLogin is available in the New Server tab where you can enable or
disable reCaptcha for that server.
ReCaptcha https and CSP bug fixes
ReCaptcha error message
Recaptcha bug fixes

Error message for empty captcha "Please enter correct captcha!" and if
the user enters correct captcha but wrong login data it won't be
required to enter it next time.
refactor server_collations.php
1. split long function
2. add server_common.lib.php
rename function name for a better indication
refactor mysql_charsets.inc.php
refactor server_status_monitor.php
1. split long functions
2. add server_status_monitor.lib.php
Allow test to run standalone
Allow test to run standalone
Set token in single place for all tests
Adjust to new token value
Allow to run standalone
Globally set language
Use correctly set language
Do not set language in every test
Possibly undefined variable
Make it work with separated globals
Do not rely too much on previous state