Changes to READMD.md/adoc and _vimrc

== README.md
  * Changed to asciidoc from markdown
  * added info re: verbos

== vim/_vimrc
  * Change font for powerline/airline compatible glyphs
  * removed <cr> from normal mode cr remap, to just noh + cr
  * fixed bug in backwards search / centering remap (removed space in Nzz)
  * set default encryption to blowfish
  * switched to forked version of asciidoc syntax file
  * noted need for exuberant.ctags
  * added airline customizations (date/time, line/col/total)
  * vim-orgmode plugin sequential states
  * remap 'V' to highlight to end of line (like other caps)
  * timeout tweaks
  * non-silent adoc command to view errors (commented out)