Issue #1852174 by jjmackow: Fix for undefined variable.
Set BOOKBLOCK_DEBUG to FALSE.
Issue #1676948 by zalexander: Fix title XSS vulnerability.
Added @todo to install file.
Merge commit '6.x-1.0-beta2' into 6.x-1.x
Put my debug define() in the right place.
Added debug code.
Removed unnecessary if statement.
Added extra modules to test setup.
Added isset() to check if variable exists.
Issue #1158542 - reported by patlo - Fixes Notice: Undefined property: stdClass::.
Thinking through tests.
Fixed configure links on admin page.
Stripping CVS keywords
Working out code to remove block from database.
A start on the tests.
Tidied up help text.
Added configure link.
Added n.type to query as node_access() requires it.
Brought latest 6.x dev changes into 7.x branch.
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