feat(api): add api-experimental.nylas.com as login option

internal_packages/onboarding/lib/login-page.cjsx

@@ -76,6 +76,7 @@ class LoginPage extends Page
     <div className="environment-selector">
       <select value={@state.environment} onChange={@_onEnvChange}>
         <option value="development">Development (edgehill-dev, api-staging)</option>
+        <option value="experimental">Experimental (edgehill-staging, api-experimental)</option>
         <option value="staging">Staging (edgehill-staging, api-staging)</option>
         <option value="production">Production (edgehill, api)</option>
       </select>

internal_packages/onboarding/lib/nylas-api-environment-store.coffee

@@ -11,7 +11,7 @@ class NylasApiEnvironmentStore extends NylasStore
   getEnvironment: -> atom.config.get('env')
 
   _setEnvironment: (env) ->
-    throw new Error("Environment #{env} is not allowed") unless env in ['development', 'staging', 'production']
+    throw new Error("Environment #{env} is not allowed") unless env in ['development', 'experimental', 'staging', 'production']
     atom.config.set('env', env)
     @trigger()
 

src/flux/edgehill-api.coffee

@@ -18,6 +18,8 @@ class EdgehillAPI
     if env is 'development'
       # @APIRoot = "http://localhost:5009"
       @APIRoot = "https://edgehill-dev.nylas.com"
+    else if env is 'experimental'
+      @APIRoot = "https://edgehill-staging.nylas.com"
     else if env is 'staging'
       @APIRoot = "https://edgehill-staging.nylas.com"
     else

src/flux/nylas-api.coffee

@@ -91,6 +91,9 @@ class NylasAPI
     else if env in ['staging', 'development']
       @AppID = '54miogmnotxuo5st254trcmb9'
       @APIRoot = 'https://api-staging.nylas.com'
+    else if env in ['experimental']
+      @AppID = 'c5dis00do2vki9ib6hngrjs18'
+      @APIRoot = 'https://api-experimental.nylas.com'
 
     current = {@APIToken, @AppID, @APIRoot}