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.
Highlight SQL using CodeMirror
Hook SQL highlighter to more places

Unfortunately there are quite many places where SQL query might appear,
hopefully I've made it correctly.
Fixed highlight interactions with inline editor
Default to none PHP highlighting
Make database extension code object oriented
Correctly detect already performed highlighting
Drop console.log
Drop not used colorize addon
As DBI_Extensions are not classes we can mock them for tests.
Convert database interface to a class
Fix tests by using mock objects of DatabaseInterface
Merge branch 'master' into OOP_DBI
Few renamings that got missed
4.0.2 release
Translated using Weblate (Spanish)

Currently translated at 100.0% (2666 of 2666)