Don't limit book depth results in LOP when using taxonomy.
Add behat test.
Fix comments.
Add checkbox to include child book pages in result.
Change test.
Merge branch 'SCHOLAR-3.x' into 5774
Add t() function.
Remove foo.
Minor fix.
Merge pull request #6044 from openscholar/5774

Don't limit book depth results in LOP when using taxonomy.