Add prelude-term-buffer-name variable

This provides multi-term support via .dir-locals.el for example.
Always load Google style for C and C++ files
Add major mode for Qt's project files
Make sure that solarized-theme is installed
Reload .dir-locals.el when changing major modes
Integrate clang-format with Emacs
Merge pull request #737 from dougm/term-buffer-name

Add prelude-term-buffer-name variable
Disable ido module
Install and configure helm-company
Cleanup old code
Setup shortcut for M-x compile
Install helm-dash and enable all installed docsets
Install and configure helm-gtags
Merge upstream changes