Lithuanian translation
Search model not required anymore in crud generator
Reformating code. Removed \t signs, using spaces. Edited Changelog.
Fixes #3325: fixed generated markup for conditional comments

No changelog line since feature was introduced after beta
Update git-workflow.md
BaseMailer: strip <style> content from TextBody fix

If ```$htmlLayout``` contains <style> tags with CSS rules,
strip_tags here: https://github.com/yiisoft/yii2/blob/master/framework/mail/BaseMailer.php#L189
won't clean those CSS rules.

Actual html: 
```html
<html>
    <head>
        <style>
            .text-secondary {color: #93959A;}
            [...]
            [Other CSS rules]
            [...]
        </style>
    </head>
    <body>
        <div>Some content</div>
    </body>
</html>
```

Will look this way in TEXT version of Email: 
```
.text-secondary {color: #93959A;}
[...]
[Other CSS rules]
[...]
Some content
```

--------------

If TEXT version of Email differs drastically from visible content of HTML version,
it can be result that some penalty points will apply to such mails: 
http://wiki.apache.org/spamassassin/Rules/MPART_ALT_DIFF_COUNT


Since it's default behaviour for both yii2-app-advanced and yii2-app-basic (where stripped from tags html used for TextBody),
I believe people will stumble in this for sure, without even knowing that their emails can be penalized.


You can reproduce it by placing CSS styles in email view or layout
and test it here: http://www.mail-tester.com/ (SpamAssassin section).
Update BaseMailer.php
Update BaseMailer.php
Merge pull request #3328 from armab/patch-1

BaseMailer: strip <style> content from TextBody fix
reorganized guide toc [skip ci]
Merge branch 'master' of git://github.com/yiisoft/yii2
changelog update. [skip ci]
guide toc udpate [skip ci]
Fixed typo in tutorial-template-engines.md
Merge pull request #3331 from robregonm/patch-1

Fixed typo in tutorial-template-engines.md
Added environment constants description. [skip ci]
Merge branch 'master' of git://github.com/yiisoft/yii2
Finished components guide. [skip ci]
minor doc fix [skip ci]
Update broken links in db-active-record.md

- update link to query builder guide
- update link to model guide
- update link to behaviors guide
- update link to database basic guide