Minor edits
Minor conflict resolution
Fixes the problem of unseen buildings in the pedia

This was actually found by stackpointer.
Merge of changes
Merge remote-tracking branch 'origin/master' into ExpiredReign
Merge remote-tracking branch 'origin/master' into ExpiredReign
Minor text error

Found by a new user on the forum
README update
HEAD error

Stupid error with the commit
Added values for ALL the new leaders

Included the removal of temp code.
Fixed 2 spelling errors

Leaders Maria I & Ashurbanipal
Code to narrow the field of likely bugs with YieldLibrary