Renamed navbar since it is set by conf.py according to new theme

Made logo much smaller to comply with new theme

Added sample image for frong page

Modified conf.py for new bootstrap theme
toctree changed so that product pages are visible and all other pages hidden.  This allows products to be displayed in drop down menu.
Title added for python packages page
Changes to conf.py allowing products to be a dropdown menu containing all diffpy products.  Background of logo made transparent.
Revert to default values for the bootstrap theme.

And also do nitpicky error checking.
Define custom menu by replacing navbar.

Here is a new navbar adjusted from the bootstrap theme.
Extend rather than replace navbar.html.

This is so much better - only update navbar blocks that need change.
Use form-processing script on slapper.
Unify two static trees.

The static_root directory is for any static trees that will be copied
to the webpage root directory.
add redirect link of srxplanar document
Added link to DiffPy-CMI in the first paragraph of homepage.

Added link to cmi_exchange in products/diffpycmi page.

Added section links to products/diffpycmi page.
Merge branch 'bootstrap' into source

Added link to cmi_exchange on products/diffpycmi page

Added links to sections on products/diffpycmi page
delete the word modules
added BNL logo fixme
Reallocate the figure and introduction. The text on the right of the
figure is in the sidebar.rst
Redesign of front page.  Simpler, more visually appealing layout.
Redesign of diffpycmi page to reduce clutter.
Added files for creating diffpycmi download button on front page.

Added BNL logo file and CMI logo file

Added uptated LICENSE
Created new directory within products for diffpycmi.  Now all diffpycmi
related pages (index, install, license, etc.) are located in the same
place.
Added new image for diffpycmi and DOE logo