Make cucumber happy

It suppresses its warning of being loaded outside
of env.rb
Re-wrap long lines is mocha query_helper
Avoid clearing books table

because we need fixtures in js specs
Add textFieldWith selector for mocha
Modify book fixtures
Add js spec for book_paging_form

because its cucumber counterpart keeps failing
erratically
Dump cucumber paging thought records scenario

in favour of js spec implemented earlier
Replace testing total records scenario
Link spec to github issue in paging form panel
Comment unused cucumber code
Merge pull request #110 from 0rca/book_paging_form_test

Replace erratically failing paging form feature with mocha spec