Display full command line on suggestion for the kill command

For the zsh suggestion for the 'kill' command, show full command line
(command: usually with arguments) instead of only the executable name (comm).
[Fix #635] Use $BROWSER to open node documentation
[Fix #594] Remove quotes surrounding associative array key
also detect stashed deleted files in git-info
adapt config
use custom theme based on sorin
add option for local zshrc via dotfiles