Update the README with some absolute paths

The "quick install" line used to suggest the user to `git clone --recursive` into `.emacs.d`. Perhaps is better to make the user clone in `~/.emacs.d` so that they can install Spacemacs whatever their `$(pwd)` is.

I'm committing this since a couple of times I was frustrated that the Spacemacs installation didn't do anything just because I cloned `.emacs.d` somewhere other than `~`.
Ignore .cache folder in .projectile file

instead of globally in code
Fixes #107 Bad Interaction Between Highlighting Line

and Match Highlighting
Remove solarized theme submodule
Add solarized theme extension files
Remove helm-quick-update

It is not needed anymore since helm-candidate-number-limit is
small (less than several thousands). If this is the case, then there's
no difference between quick update and no quick update execution time.
Enabling helm-quick-update makes helm buffer flashing for every entered
character to retrieve new candidate list, which would annoy user.
New documentation on escaping in readme
Fix typos in contribute
separated python settings into a contrib
Add evil-args and evil-jumper to the list of plugins in readme
Add doc for <layer>-excluded-packages variable in readme
Merge pull request #111 from danielwuz/python-contrib

Python contrib
Add nose and pylookup as regular directories

i.e. not as submodule
Remove nose and pylookup submodules
Fix a bug in automatic orphans deletion algorithm
Remove epc package from packages in the spacemacs layer
Projectile variables need to be present before load
Added evil-jumper
Open `.spacemacs` dotfile in the same manner as init and contrib.
Windows emacs binary path is at base distribution directory, need to traverse to bin folder
Update readme