Use root_path in sse URL

Change toolbar mako file so that sse urls use the passed in root path rather than assuming the toolbar is at /.
better way of fixing the SqlAlchemy explain/select issue and ensuring javascript libraries are available to all templates
only jquery need to be loaded first.
Merge pull request #198 from jvanasco/issue_146_alt

fixed issue_146 by incorporating the bootstrap reset and reordering javascript files
Merge pull request #185 from dscerri/master

Use root_path in sse URL