Revert "add underline instead of box color for inactive mode line #71"

This reverts commit 618e36f2d13f5965634b4b5bbb450024c477e5cf.
Merge branch 'master' of github.com:bbatsov/solarized-emacs
Merge branch 'master' of github.com:bbatsov/solarized-emacs
customizeable fringe and mode-line
also make linum-mode use customizable fringe bg.

Closes #79
Added notes about contrast customisations

Addresses @marcinant's comments about documentation on 1bbc96fa99dcc7ce573c503f63802974146b7313
Merge pull request #81 from bradleywright/patch-1

Added notes about contrast customisations
mention customize-group
Org-levels inherits variable pitch and are sized.
Change color of pretty-mode-symbol-face to yellow.

It is slightly more visible than green.
Change face of org-agenda-calendar sexp.

Cannot see why one would need to be informed that agenda entry is a
based on a sexp (?).
set height on markdown header faces
height and variable-pitch on some customize faces
add paren-face
markdown headers -> green
never use font size over 1.3
customizable font scale sizes
disable magit-diff-use-overlays
added option to not use variable-pitch
force org-column to inherit default