Remove erroneous BOM

Closes WordPress-Coding-Standards/WordPress-Coding-Standards#38

$ grep -rl $'\xEF\xBB\xBF' .
./Sniffs/WhiteSpace/OperatorSpacingSniff.php
Merge pull request #44 from x-team/master

Sniff cleanup, README update, unit tests
add valid sanitize functions
add 'other' functions from codex page
Add more sanitizing functions to EscapeOutputSniff

Merge branch 'daithi-coombes-sanitize-functions' into develop

Closes #46
Resolves #45
Merge branch 'master' into develop

Conflicts:
	Sniffs/WhiteSpace/OperatorSpacingSniff.php
Add CONTRIBUTING.md
Move unit test info to new CONTRIBUTING.md

Merge branch 'master' into develop

Conflicts:
	README.md
Merge pull request #47 from WordPress-Coding-Standards/develop

June 2013 Release
Fix trailing comma issue in array definition where it choked on closures and multiline functions
Add tests for #59
Fix ControlStructureSpacingSniff not to choke on comments
Closes #36
Disable 'Blank line at start of control structure' check, keeping code for reference
Default to a warning type for messages from DiscouragedFunctionsSniff
Closes #48
Merge pull request #62 from WordPress-Coding-Standards/issue/48

Default to a warning type for messages from DiscouragedFunctionsSniff
Add new core.ruleset.xml excluding extra sniffs.
Move blank line checks behind a public var
So people can use it to enable/disable the check from XML without hacking the code
Add EOF-EOL
Use valid closure in test; allow closures in arrays
Merge branch 'array-trailing-comma' into develop

Closes #59