Added missing activeSearchField() method to CHtml. And searchField() to CActiveForm. For creation of HTML input field of type search, that fixes #1743
Fixes #1957. Add Primary Key syntax for MySql schema. Also adds support of an Array
of columns rather than just a string
Add changelog lines
Enh #2131: Added Accept header parsing to CHttpRequest to give an array
of accepted types in order of preference
TABS Ident fix.
Merge remote-tracking branch 'upstream/master' into
2131-add-accept-header-parsing

Conflicts:
	CHANGELOG
Moved position of line to follow numerical order.
Added #135 back in changelog, which got lost somehow..
Fixes #2184: CDbHttpSession now supports MS SQL Server BLOB data type.
Remove unneeded space.
Separated out parse and compare functions.
Reduced regular expression count to 2 from 3.
Modified MIME type array map structure.
Merge remote-tracking branch 'upstream/master' into
2131-add-accept-header-parsing

Conflicts:
	CHANGELOG
Typo corrections
Add extension.create.txt Brazilian Portuguese translation to Yii Definitive Guide.
Add extension.integration.txt Brazilian Portuguese translation to Yii Definitive Guide.
Add new translator name and change copyright period to 2008-2013 in Brazilian Portuguese index of Yii Definitive Guide.
Correct one section title in Brazilian Portuguese table of contents of Yii Definitive Guide.
Add upgrade.txt Brazilian Portuguese translation to Yii Definitive Guide.
Add test.overview.txt Brazilian Portuguese translation to Yii Definitive Guide.
Add test.fixture.txt Brazilian Portuguese translation to Yii Definitive Guide.