pgAdmin 4 commit: Fixed all the review comments from Dave.

Fixed all the review comments from Dave.

* Moved the Columns, and Constraint to its repective tabs.
* Ensure all the labels only have a capital letter on the first word
  (except for keywords or acronyms).
* Resolve the typo in string - 'System table'.
* Error messages on fields should not be shown unless the field loses
  focus and has an error.
* "General" section should have a limited subset of information.
* Variables grids should not be on the Security tab.
* Fixes the field labels that imply a question.
* Privileges controls on the Properties lists should be in a "Security"
  group.

Apart from review comments improved few other areas too:
* Used in-place DepsCell functionality for columns in both index, and
  type node.
* Improved the error handling in constraint nodes.
* Added create, alert SQL Help for nodes associated with the table node.

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=af84ba5a4f4db59f672d47f98f684d9d5a2c4160
Author: Murtuza Zabuawala <murtuza.zabuawala@enterprisedb.com>

Modified Files
--------------
.../tables/column/templates/column/js/column.js    |  67 ++--
.../check_constraint/js/check_constraint.js        |   7 +-
.../js/exclusion_constraint.js                     |  10 +-
.../templates/foreign_key/js/foreign_key.js        |  18 +-
.../index_constraint/js/index_constraint.js        |  25 +-
.../tables/indexes/templates/index/js/index.js     | 117 ++++--
.../schemas/tables/templates/table/js/table.js     | 413 +++++++++++----------
.../databases/schemas/tables/triggers/__init__.py  |   2 +-
.../triggers/templates/trigger/js/trigger.js       | 114 +++---
.../servers/databases/schemas/types/__init__.py    |   3 +-
.../schemas/types/templates/type/js/type.js        |  99 ++++-
.../templates/type/sql/9.1_plus/get_types.sql      |   3 +-
.../schemas/views/templates/mview/js/mview.js      |  40 +-
.../templates/file_manager/js/file_manager.js      |  75 ++--
.../templates/file_manager/js/utility.js           |   3 +-
15 files changed, 589 insertions(+), 407 deletions(-)