use correct array name
rename files, to have a better series. also adjust keybindings

should you have .local files, you need to follow:

55_KeyBindings -> 80_KeyBindings
65_Editor -> 60_Editor
90_Plugins -> 70_Plugins
92_Exec -> 90_Exec
95_tmuxscreen -> removed, merged into 90_Exec

keybinding changes:
Up/Down are bound to history-substring-search-{up,down}, not up-line-or-search
PageUp/Down are bound to history-beginning-search-{back,for}ward-end
change echo to print
move global aliases down, add LL and NE
update history-substring-search plugin
new way of handling plugins, allow oh-my-zsh plugins too

Plugins now defined per zstyle, only those listed there are loaded
(or a default set if style isnt defined).

and there is a ohmyplugins style now, to allow oh-my-zsh plugins to
be loaded, see README for what to do for this.