First pass at using fixed header for blog preview
Second pass at using fixed header for blog preview, also remove progress on blog info and added progress to mshot image
Fixed header in blog preview completed
Headers for blog preview and tag preview now use similar "card" styles.
Tapping "blog header" above post in reader post list now shows blog preview
Tag displayed in reader post list is pre-computed and cached to reduce work in getView()
Minor display tweaks