Add missing paths to .gitignore, and clean it up a little.
treeb2de77a72db65a1c6f23ff2ddb15016cbdafbd0f
-rw-r--r-- 3647 .clang-format
-rw-r--r-- 10123 .gitignore
-rw-r--r-- 2142 .travis.yml
-rw-r--r-- 18097 HelenOS.config
-rw-r--r-- 4987 Makefile
-rw-r--r-- 3708 README.md
drwxr-xr-x - abi
drwxr-xr-x - boot
drwxr-xr-x - contrib
drwxr-xr-x - defaults
drwxr-xr-x - doxygen
drwxr-xr-x - kernel
drwxr-xr-x - release
drwxr-xr-x - tools
drwxr-xr-x - uspace
-rw-r--r-- 1950 version