Update Doctor command

lib/src/commands/doctor.dart

@@ -1,10 +1,10 @@
 import "dart:convert";
 import "dart:io";
 import "package:args/command_runner.dart";
-import "package:console/console.dart";
+import 'package:io/ansi.dart';
+import '../util.dart';
 
 class DoctorCommand extends Command {
-  final TextPen _pen = new TextPen();
 
   @override
   String get name => "doctor";
@@ -23,16 +23,12 @@ class DoctorCommand extends Command {
     try {
       var git = await Process.start("git", ["--version"]);
       if (await git.exitCode == 0) {
-        var version = await git.stdout.transform(UTF8.decoder).join();
-        _pen.green();
-        _pen("${Icon.CHECKMARK} Git executable found: v${version.replaceAll('git version', '').trim()}");
-        _pen();
+        var version = await git.stdout.transform(utf8.decoder).join();
+        print(green.wrap("$checkmark Git executable found: v${version.replaceAll('git version', '').trim()}"))
       } else
         throw new Exception("Git executable exit code not 0");
     } catch (exc) {
-      _pen.red();
-      _pen("${Icon.BALLOT_X} Git executable not found");
-      _pen();
+      print(red.wrap("$ballot Git executable not found"));
     }
   }
 }

lib/src/util.dart

@@ -6,6 +6,8 @@ import 'package:pubspec_parse/pubspec_parse.dart';
 
 final String checkmark = ansiOutputEnabled ? '\u2713' : '[Success]';
 
+final String ballot = ansiOutputEnabled ? '\u2717' : '[Failure]';
+
 Future<Pubspec> loadPubspec() {
   var file = new File('pubspec.yaml');
   return file

pubspec.yaml

@@ -7,8 +7,6 @@ dependencies:
   # analyzer: ^0.29.0
   args: ^1.0.0
   code_builder: ^3.0.0
-  #console: ^2.2.3
-  dart2_constant: ^1.0.0
   dart_style: ^1.0.0
   glob: ^1.1.0
   homedir: ^0.0.4
@@ -16,7 +14,6 @@ dependencies:
   id: ^1.0.0
   io: ^0.3.2
   inflection: ^0.4.1
-  #mustache4dart: ^2.1.0
   path: ^1.0.0
   prompts: ^1.0.0
   pubspec_parse: ^0.1.2
@@ -25,10 +22,6 @@ dependencies:
   watcher: ^0.9.7
   yaml: ^2.0.0
   #yamlicious: ^0.0.5
-dev_dependencies:
-  #build: ^0.7.0
-  #build_runner: ^0.3.0
-  #check_for_update: ^1.0.0
 environment: 
   sdk: ">=2.0.0-dev <3.0.0"
 executables: