Add support for initialization urls.
Simplify logic checking that all initialization requests are done.
Merge pull request #197 from FuegoFro/shell_initialization_callbacks

Add support for initialization urls.
Aggregation framework
Aggregation tests
Help keyword
Aggregation frontend tests
Test aggregation with bad query
Default aggregate query to [] (works like find)
Whitespace before help
Merge pull request #202 from rcchan/help

Help keyword
jshint wrapping
Merge pull request #204 from rcchan/help

jshint wrapping
Join array elements with ', ' instead of ',\n'
Reset data to initial state
Reset testing
Reset confirmation
Merge pull request #199 from rcchan/aggregation

Aggregation
Use function to export init
Merge pull request #201 from rcchan/reset

Reset data to initial state