.vimrc: Remove unused test lines.
Add .zshrc.
.bashrc: Remove ssh-agent helper.
.bashrc: Add comments about rbenv.
.bashrc: Add comment about node.
.bashrc: Add perl environement variables.
.gitignore: Ignore log and swap files.
.gvimrc: Change font to Monofur.
.vimrc: vertically open buffers to the right.
.vimrc: Set mapleader to ','.
.vimrc: Change mappings for (g)vimrc editting.
.vimrc: Add mapping for toggling spell-checking.
.vimrc: Filetype association for *.zsh-theme set to zsh.