Vim: Update plugins
zsh: update history substring search
Revert "zsh: update history substring search"

This reverts commit 0e7cbab7533bdb6f74f0a76abc2a7d597075efa4.
Allow execution from elsewhere
install -> install.sh
remove paywall on taz.de
Vim: Update syntastic
Vim: Update rbi
Zsh: Updated substring search