Changed math environment of skeleton of tex_9.
Added multi-figure snippet for tex_9.
Changed tex_9 skeleton for xelatex for pdfmerge.
Added snippet for inline enumerate for tex_9.
Added syntax files for arduino.
Added matchit config for octave.
Added auto-completion for octave.
Added config for arduino.
Added makeprg for octave.
Added snippets for arduino.
Since tab is only useful when writting tables, and spaces are better
viewed, I switch noexpandtab to expandtab for tex files.
Added LaTeX-Box plugin, which have table of contents for tex.
Enable fold for tex file of latex-box.
Added bash.vim for bash files, which set tw=80