Export color and formatting variables in a global dictionary

To be able to use the final values obtained by the solarized color
scheme in user customizations, the local variables fg_xxx, bg_xxx and
fmt_xxx are exported in a new global variable of type dictionary
called g:solarized_vars. So they can be accessed easily following the
syntax g:solarized_vars.fg_base0.
Fix two typos in doc.
Fixes output of advanced config in readme.
[vim] Documentation

 * Add Vundle installation instructions
[vim] Documentation

 * Fix typo
Typos, markup & whitespace fixes
Trailing spaces highlight more aggressive
Remove trailing space
Add underline
Correct highlight for CursorLine and number of line in rnu mode
made sign column 'transparent'
signcolumn colours made better for gitgutter
Merge commit 'f979245'
Merge pull request #39 from cdlm/master

Merge a few simple pullreqs
Merge pull request #83 from cyplo/master

Change SignColumn to better support gitgutter and similar plugins
fix g:solarized_termtrans
fix bold-italic
No background color to highlight SpecialKey

This avoids having dark background for these chars when in light mode.

Signed-off-by: Thom Wiggers <thom@thomwiggers.nl>
Merge pull request #48 from nevar/master

Trailing space highlight