Changed CMI-logo to contain Ni PDF fit
Made DOE and BNL logos slightly smaller on frontpage.

Fixed scaling issue with DiffPy logo on front page--it now scales
proportionally
Fixed capitalization of DiffPy
Synced with pdfgetx3 r2814.
No executables.
Remove temporary build file.
Fix links for PDFgetX3 installation instructions.

Add links to the manual and tutorial files.
Add bootstrap theme files.

Copied from sphinx_bootstrap_theme-0.3.8.
web-page now compiles without the bootstrap_theme Python package.