pgAdmin 4 commit: Allow a value of 0 rows per page to mean "no paging".

Allow a value of 0 rows per page to mean "no paging". Allow rows to be added on any page.

Fixes #1356

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=f9393aee4488c5f35eece0d2884ccf90ff13d7bf
Author: Akshay Joshi <akshay.joshi@enterprisedb.com>

Modified Files
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web/pgadmin/tools/sqleditor/__init__.py            |   5 +-
.../sqleditor/templates/sqleditor/js/sqleditor.js  | 218 +++++++++++++++------
web/pgadmin/utils/preferences.py                   |   4 +
3 files changed, 171 insertions(+), 56 deletions(-)