[CHG] remove flask theme, add sphinx-bootstrap 0.3.8

doc/_themes/sphinx_bootstrap_theme/__init__.py

doc/_themes/sphinx_bootstrap_theme/bootstrap/globaltoc.html

doc/_themes/sphinx_bootstrap_theme/bootstrap/layout.html

doc/_themes/sphinx_bootstrap_theme/bootstrap/localtoc.html

doc/_themes/sphinx_bootstrap_theme/bootstrap/navbar-2.html

doc/_themes/sphinx_bootstrap_theme/bootstrap/navbar.html

...mes/sphinx_bootstrap_theme/bootstrap/navbarsearchbox.html

doc/_themes/sphinx_bootstrap_theme/bootstrap/navbartoc.html

doc/_themes/sphinx_bootstrap_theme/bootstrap/relations.html

doc/_themes/sphinx_bootstrap_theme/bootstrap/search.html

doc/_themes/sphinx_bootstrap_theme/bootstrap/searchbox.html

...hemes/sphinx_bootstrap_theme/bootstrap/searchresults.html

doc/_themes/sphinx_bootstrap_theme/bootstrap/sourcelink.html

...strap/static/bootstrap-2.3.2/css/bootstrap-responsive.css

...p/static/bootstrap-2.3.2/css/bootstrap-responsive.min.css

..._theme/bootstrap/static/bootstrap-2.3.2/css/bootstrap.css

...me/bootstrap/static/bootstrap-2.3.2/css/bootstrap.min.css

...static/bootstrap-2.3.2/img/glyphicons-halflings-white.png

...strap/static/bootstrap-2.3.2/img/glyphicons-halflings.png

...ap_theme/bootstrap/static/bootstrap-2.3.2/js/bootstrap.js