README fix

Fix title image in README.

JavaScript layer

New JavaScript layer (thanks to oppenlander).

Move documentation, Powerline colors, Erlang-Elixir layer option

• Documentation files have been moved to doc directory to unclutter the root of the repository.
• Add FAQ about mode-line colors on OS X and the solution (thanks to trishume and chrisbarrett)
• Erlang-Elixir layer has a new option to enable EDTS (see documentation).

fix guide-key

Fix guide-key! (thanks to chrisbarrett)

iedit fixes

Various iedit layer fixes (thanks to danielwuz)

Improvements to iedit states, ahs integration with isearch, fixes and tweaks

• iedit layer has been redesigned to be a normal state adapted to iedit, see the new readme (thanks to danielwuz for the great feedbacks)
• auto-highlight-symbol is now correctly integrated with isearch which means that pressing n or N will correctly look for the last auto-highlight-symbol! (thanks to herbertjones)
• Reports unknown packages at startup and prevent spacemacs from trying to install them (thanks to chrisbarrett)
• Compilation commands are now on prefix SPC c (see documentation) (thanks to rphillips)
• Improvements to spacemacs README (thanks to chrisbarrett)
• Clarify README for themes-megapack layer (thanks to ianks)
• New questions in FAQ of README
• New shell section in DOCUMENTATION with a great tip (C-o) (thanks to herbertjones)

iedit layer, fixes

• New contrib layer: iedit. This is an experimental layer that is aimed to replace the edition feature of auto-highlight-symbol.
• New key binding to switch to another frame: SPC w o (thanks to danielwuz)
• Fix erroneous key bindings for Paradox in documentation (thanks to rphillips)
• Great new introduction in readme (thanks to chrisbarrett)
• Fix and # with auto-highlight-symbol. Now pressing correctly goes to the next occurrence and # to the previous occurrence.
• Fix window-resize micro-state which was triggered for no reason.
• Fix helm-resume by rebinding it to SPC h l (mnemonic for helm last).

Auto-highlight-symbol, Paradox, Evilify, split and resize window changes

• symbol at point is not automatically highlighted anymore. Current symbol can be highlighted on demand with <SPC> s h. At any time it is possible to jump to the last highlighted symbol with <SPC> s b.
• Paradox is now in spacemacs layer, documentation here.
• Evilify concept, more info in CONVENTIONS.md.
• Fix #196. Vertical and Horizontal split notions have been swapped to match the meaning of Vim. Vertical split is now on <SPC> w v and Horizontal split on <SPC> w s.
• New micro-state to resize windows initiated with <SPC> w S
• Add documentation about <SPC o prefix command which is reserver for the user.
• Fix typos in documentation (thanks to ianks).

Auctex, Smex, Github, Haskell Layers, Themes, fixes and tweaks

• New contrib layer: Auctex (thanks to trishume)
• New contrib layer: Smex
• New contrib layer: Github
• New contrib layer: Haskell
• Fix #186, dotspacemacs-default-theme variable can now be set to a native Emacs theme
• Official support of leuven-theme in Spacemacs, this theme is awesome for Org.
• Move org-repo-todo key bindings on prefix <SPC> T (thanks to CestDiego)
• Disable auto-highlight-symbol in org-mode
• Start filling the conventions in CONVENTIONS.md
• Fix documentation about .spacemacs.template location (thanks to dcbishop and jarofghosts)

pcre2el layer, key bindings update, fixes and tweaks

• New contrib layer pcre2el (thanks to nmerinos)
• Fix #182, pre-extensions and post-extensions lists are now optional in extensions.el files.
• Fix #175, indentation should now work properly in org buffers (thanks to mooglinux)
• Prefix commands have now the prefix group: in guide-key and their face is different from anonymous prefix commands.
• Cycle between supported themes is now on <SPC> T c
• helm-theme is now on <SPC> T h
• Minor changes to org key bindings with prefix <SPC> m, see documentation.
• Key bindings from org-repo-todo layer are now under <SPC> m instead of <SPC> o.
• Missing layers are now logged in *Messages*.
• Add a function to easily declare prefix commands: spacemacs/declare-prefix
• Add FAQ to readme