Add \b to characters that are allowed to use double quotes
Added unit test + changelog
Prepare for 1.5.1 release
There wasn't an alpha 1 release, so wind back the version number
Merge branch 'master' into phpcs-fixer

Conflicts:
	CodeSniffer.php
	CodeSniffer/Standards/Squiz/Tests/Strings/DoubleQuoteUsageUnitTest.php
	package.xml