fix(generic): tabtab install breaks in bash for windows

tabtab-install.js

@@ -1,16 +1,21 @@
-const Complete = require('tabtab/src/complete');
-const Installer = require('tabtab/src/installer');
+try {
+  const Complete = require('tabtab/src/complete');
+  const Installer = require('tabtab/src/installer');
 
-const options = { auto: true, name: 'electron-forge' };
-const complete = new Complete(options);
-const installer = new Installer(options, complete);
+  const options = { auto: true, name: 'electron-forge' };
+  const complete = new Complete(options);
+  const installer = new Installer(options, complete);
 
-let shell = process.env.SHELL;
-if (shell) shell = shell.split((process.platform !== 'win32') ? '/' : '\\').slice(-1)[0];
+  let shell = process.env.SHELL;
+  if (shell) shell = shell.split((process.platform !== 'win32') ? '/' : '\\').slice(-1)[0];
 
-if (installer[shell]) {
-  installer.handle(options.name, options)
-    .catch(e => console.warn(`Failed to install tab completion: ${e}`));
-} else {
-  console.warn(`User shell ${shell} not supported, skipping completion install`);
+  if (installer[shell]) {
+    installer.handle(options.name, options)
+      .catch(e => console.warn(`Failed to install tab completion: ${e}`));
+  } else {
+    console.warn(`User shell ${shell} not supported, skipping completion install`);
+  }
+} catch (err) {
+  console.log('tabtab install went wrong', err);
+  process.exit(0);
 }