Merge pull request #2124 from arvenil/fix-memcache-install-for-php-5.5

Fix memcache install for php 5.5 builds in travis
Updating ukrainian guide translations
Enh #2131: Added Accept header parsing to CHttpRequest to give an array
of accepted types in order of preference
[Uk][Blog] Added 2 new sections, fixed typos
Merge pull request #2133 from yiiframework-com-ua/uk_docs

Updating ukrainian translations (Guide, Blog docs)
[ci skip]
CJavaScriptExpressoin changed to CJavaScriptExpression in comments
Merge pull request #2138 from B-Scan/small-typo-fix-cactiveform

CJavaScriptExpressoin changed to CJavaScriptExpression in comments
docs/blog/ja/prototype.scaffold.txt updated
Merge pull request #2144 from softark/docs-ja

docs/blog/ja/prototype.scaffold.txt updated
Update framework/validators/CEmailValidator.php

If fsockopen error "Connection refused" (error code: 61) is reached, yii hangs with uncatched 500 error code.

Output html code:
<h1>PHP Error [2]</h1>
<p>fsockopen() [<a href='function.fsockopen'>function.fsockopen</a>]: unable to connect to mail.somedomain.com:25 (Connection refused)</p>
CHANGELOG line for #2146 [armab]
Update framework/web/CClientScript.php

fixed error
Added in Fileinfo PECL extension check
Updated description
fixed type in cdbfixturemanager doc
Merge pull request #2155 from nsanden/typo-fix-cdbfixturemanager

fixed typo in cdbfixturemanager doc
Fixes #2159 - problem with command builder for delete with joins.
PHPDoc typo fix.
Merge pull request #2161 from resurtm/CListIterator-typo-fix

PHPDoc typo fix.
[UK][Guide] Fixing typo [ci skip]