Use scripts/kibana instead of bin if available (#53)

* Use scripts/kibana instead of bin if available

* semicolons

* Don't fallback to legacy bin/kibana start method

* chore: add 8.x version to compat chart

README.md

@@ -31,8 +31,9 @@ $ plugin-helpers help
 
 Plugin Helpers | Kibana
 -------------- | ------
-7.x | 4.6+ (node 6+ only)
-6.x | 4.6+
+8.x | 7.0+
+7.x | 4.6.x to 6.x (node 6+ only)
+6.x | 4.6.x to 6.x
 5.x | 4.x
 
 ## Configuration

tasks/start/start_action.js

@@ -1,10 +1,12 @@
 const execFileSync = require('child_process').execFileSync;
+const  { join } = require('path');
 
 module.exports = function (plugin, run, options) {
   options = options || {};
 
-  const cmd = (process.platform === 'win32') ? 'bin\\kibana.bat' : 'bin/kibana';
-  let args = ['--dev', '--plugin-path', plugin.root];
+  const cmd = 'node';
+  const script = join('scripts', 'kibana.js');
+  let args = [script, '--dev', '--plugin-path', plugin.root];
 
   if (Array.isArray(plugin.includePlugins)) {
     plugin.includePlugins.forEach((path) => {