This reverts commit 644d081.

 - gatsby-plugin-no-sourcemaps@1.0.0

* Add missing (official) plugins & little fixes

As talked about in:
#3708

Fingers crossed that I didn't mess up the alphabetical order :P
(I actually changed the order a little bit)

* Add gatsby-source-graphcms

closes #3711

Preprocessing via `gatsby-remark-*` transformations introduces `raw`
nodes into the AST. Adding this step fully enables the client to render
the AST as React components, finishing the work started in #3596.

 - gatsby-plugin-netlify@1.0.16
 - gatsby-plugin-no-sourcemaps@1.0.1
 - gatsby-transformer-remark@1.7.30
 - gatsby@1.9.170

* fix(gatsby-link): correct dependency declaration

The code depends on `react-router-dom`, and therefore it should be declared as a
direct dependency, not a dev one. Also, it needs `@types/react-router-dom` for
index.d.ts.

* chore(gatsby-link): declare gatsby v1 as a peer dependency

 - gatsby-link@1.6.35
 - gatsby@1.9.171

… otherwise use normal git address (#3735)

 - gatsby-cli@1.1.32
 - gatsby@1.9.172

incorrect usage of "it's"

* add basic documentation about copying files from File nodes to build directory

* A few copy edits

* Format

#3516)

* make ComponentRenderer shouldUpdateComponent return true when props change

* use shallow compare

* remove console log

* [gatsby] Report an error when layout file is missing

* Update pages-writer.js

* format

 - gatsby-plugin-no-sourcemaps@1.0.2
 - gatsby-plugin-typography@1.7.13
 - gatsby-source-drupal@2.0.17
 - gatsby-source-filesystem@1.5.16
 - gatsby-source-wordpress@2.0.52
 - gatsby@1.9.173

…Path (#3211)

* [gatsby-plugin-netlify] create rewrite rules for pages that use matchPath

* Update README.md

* disable boolean-negation in yargs

* add no-color option

 - gatsby-cli@1.1.33
 - gatsby-plugin-netlify@1.0.17
 - gatsby@1.9.174

…en to DOM before plugins run code (#3772)

…3732)

 - gatsby-plugin-google-analytics@1.0.17
 - gatsby-plugin-twitter@1.0.16
 - gatsby-react-router-scroll@1.0.9
 - gatsby@1.9.175

…3798)

…ontentful's content models. (#3794)

* use createPage singleton in dev-404-page

closes #3551

* write to a temp file and rename

decrease the chance of reading from an incomplete file

cc #3094 #3201

* change dev-404-page to implement createPagesStatefully

* update the jest snapshot

* Pass full location object to history

* Update navigateTo param to be more precise

* Pass location to navigateTo in gatsby-link

* Update navigateTo types

…indows (#3796)

* Fix issue with missing layouts on Windows

* Fix issue with missing pages on Windows

 - gatsby-cli@1.1.34
 - gatsby-link@1.6.36
 - gatsby-source-contentful@1.3.35
 - gatsby@1.9.176

…#3801)

* [gatsby-plugin-less] Extend less-plugin with support for `modifyVars`

The less plugin did its job, but when I was going to use it with a
library I experienced that it was lacking the ability to modify
less-variables. This made it hard to customize less libraries.

By letting the user provide a `options` in `gatsby-config.js`, the
plugin can overwrite variables defined in the less stylesheet and hence
makes it a breeze to customize libraries.

The user has two options to include vars: either a object defined
directly in the `gatsby-config.js` or define a file which exports an
object that will be used as the options.

* Update README.md

 - gatsby-plugin-less@1.1.1
 - gatsby-source-contentful@1.3.36
 - gatsby@1.9.177

…'t stall (#3827)

 - gatsby-plugin-less@1.1.2
 - gatsby@1.9.178

* Added logos

Not sure how to adjust the sizes here. I made them smaller on my computer but not sure if it worked

* Reduce React and Contentful logo width to 350px

Fix conditional to show error when path or component are missing in the createPath function

… from file that is page/template or layout (#3786)

add module.exports to How to use

* Experiment adding search input to home page

* Prettier

* Comment unused imports

* Display social icons when viewport is wide enough

* Use alternate colours at Hd breakpoint on home page

…3831)

* check markdown images, ensure parent is File before referencing dir

* add check for parent

 - gatsby-plugin-less@1.1.3
 - gatsby-react-router-scroll@1.0.10
 - gatsby-remark-copy-linked-files@1.5.26
 - gatsby-source-drupal@2.0.18
 - gatsby-source-filesystem@1.5.17
 - gatsby-source-wordpress@2.0.53
 - gatsby@1.9.179

…3867)

This is the first part of a german tutorial series about Gatsby. This part is about the basic creation of a blog. In the next parts I'll cover more advanced features :)

* Extend contentful resolutions and sizes to include webp src and srcSet

* Add new contentful fragments

* Add fragments to gatsby-image README

* Add example for using webp to use-contentful site

* Display image examples in a grid

* Blog post headless CMS

A couple things I'm not sure about:

- Running sites offline paragraph. Check for accuracy pls!

- Better quote from Deane that anyone has in mind?

- Can cut down assessment of headless CMSs to omit obscure complaints...

* Edits to wording and sprinkling in GatsbyJS 

Please check paragraph about running sites offline in India! I feel like there's potential there but maybe I'm off base

* Update index.md

…s(x) or .ts (#3861)

…iple times, cache promises and return them on subsequent calls (#3859)

add module.exports to How to use

 - gatsby-image@1.0.35
 - gatsby-plugin-less@1.1.4
 - gatsby-plugin-sitemap@1.2.12
 - gatsby-source-contentful@1.3.37
 - gatsby-source-drupal@2.0.19
 - gatsby-source-filesystem@1.5.18
 - gatsby-source-wordpress@2.0.54
 - gatsby-transformer-sharp@1.6.18
 - gatsby@1.9.180