Fixed error aligning input bits before decoding BTYPE=00.

The fix made it into 134a80d262 but not in the actual source :D

- if(n>0){b>>n;g-=n;}
+ if(n>0){b>>=n;g-=n;}
Removed a number of redundant semicolons.

For example, given the two definitions.

The final semicolon in F can be removed as N is a block..