bug(generate): ensure classes and imports are in lower case

Fixes angular#2833

Author: Brocco

packages/angular-cli/blueprints/component/index.js

@@ -125,7 +125,7 @@ module.exports = {
     const className = stringUtils.classify(`${options.entity.name}Component`);
     const fileName = stringUtils.dasherize(`${options.entity.name}.component`);
     const componentDir = path.relative(path.dirname(this.pathToModule), this.generatePath);
-    const importPath = componentDir ? `./${componentDir}/${fileName}` : `./${fileName}`;
+    const importPath = componentDir ? `./${componentDir}/${fileName}` : `./${fileName}`.toLowerCase();
 
     if (!options['skip-import']) {
       returns.push(

packages/angular-cli/blueprints/directive/index.js

@@ -88,7 +88,7 @@ module.exports = {
     const fullGeneratePath = path.join(this.project.root, this.generatePath);
     const moduleDir = path.parse(this.pathToModule).dir;
     const relativeDir = path.relative(moduleDir, fullGeneratePath);
-    const importPath = relativeDir ? `./${relativeDir}/${fileName}` : `./${fileName}`;
+    const importPath = relativeDir ? `./${relativeDir}/${fileName}` : `./${fileName}`.toLowerCase();
 
     if (!options['skip-import']) {
       returns.push(

packages/angular-cli/blueprints/pipe/index.js

@@ -76,7 +76,7 @@ module.exports = {
     const fullGeneratePath = path.join(this.project.root, this.generatePath);
     const moduleDir = path.parse(this.pathToModule).dir;
     const relativeDir = path.relative(moduleDir, fullGeneratePath);
-    const importPath = relativeDir ? `./${relativeDir}/${fileName}` : `./${fileName}`;
+    const importPath = relativeDir ? `./${relativeDir}/${fileName}` : `./${fileName}`.toLowerCase();
 
     if (!options['skip-import']) {
       returns.push(