Fixes #18

This completes the fixes for #18 by fixing point 3:
Empty note will now show this text: "Right Click To Edit"

*Fixed: Cursor is now correctly placed after text in save dialog.
Show class icon in save builds list

*Added: Show class icon in saved builds list
*Changed: No longer adds ListViewItems to lvSavedBuilds, instead
PoEBuilds are added directly. This is to control layout better.
Small fixes from @l0g0sys

Copied the small fixes done by @l0g0sys.
Links to poe offical and wiki + menu icons

*Added: Links to PoE website and PoE wiki under help
*Added: Icons to menu
Merged upstream changes.