Disable automatic switch of line numbers

Fixes #296
Revert numbers.vim causing relative numbering issue
Externalizing and improving search configuration
Merge pull request #301 from lfilho/insensitive-search

Externalizing and improving search configuration
git: update .gitconfig

* update alias l to show 10 commits
* add alias ll with medium formatting
* set pager to less -FerXj4
tmux: update config

* remove reattach-to-user-namespace
* remove unused key-bindings
* added several key-bindings
* added key-bindings for each window
* replaced user with host on status-left
* polished theme
tmux: set xterm-keys
zsh: clean-up aliases
vundles: add latex-suite, i3-syntax