Fixed a mining speed issue and the item display of the Enhanced Schematic Cannon.
- Fixed pickaxe mining speed not being determined correctly in environments without ProjectE (PR #4, by nekorobi-0). Conditional block registration is now supported, so referencing a block that does not exist no longer breaks the entire mining tag.
- Fixed the EMC-type texture being shown when holding the Enhanced Schematic Cannon.
- Made the version shown in the in-game mod list consistent and updated the README layout.
