pgAdmin 4 commit: Modify the web code to allow the Query Tool and Debug

Modify the web code to allow the Query Tool and Debugger to be opened in new tabs, per settings in Preferences. Fixes #1344

Note that this does *not* enable the runtime to use multiple windows at this stage. It's really only useful in Server mode.

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=569ceb39068019b098b6d62b3a5e8bc85851a767
Author: Akshay Joshi <akshay(dot)joshi(at)enterprisedb(dot)com>

Modified Files
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web/pgadmin/tools/datagrid/__init__.py | 27 +++-
.../tools/datagrid/templates/datagrid/index.html | 3 +-
.../datagrid/templates/datagrid/js/datagrid.js | 161 +++++++++++++--------
web/pgadmin/tools/debugger/__init__.py | 21 ++-
.../debugger/templates/debugger/js/debugger.js | 96 +++++++-----
.../debugger/templates/debugger/js/debugger_ui.js | 53 ++++---
web/pgadmin/tools/sqleditor/__init__.py | 8 +
.../sqleditor/templates/sqleditor/js/sqleditor.js | 95 ++++++------
8 files changed, 297 insertions(+), 167 deletions(-)