Arctic Ice Update

I've been updating my Habari theme, Arctic Ice. The changes I've made are

• Added robots information in header so only the home page, single post pages, and page pages are indexed
• Made output of the the More Posts, Recent Comments, and Tags headers conditional on comments, posts, and tags actually being available
• Aligned menu search bar to the right
• Fixed alignment issues in entry class
• Made home page show full first post, excerpt only on additional posts