Merge pull request #301 from lfilho/insensitive-search

Externalizing and improving search configuration
Fix: [Zsh] load ssh-agent module
Merge pull request #304 from petRUShka/load-ssh-agent

Fix: [Zsh] load ssh-agent module
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
zsh: disable ssh-agent forwarding