fixed new BUG where adding a sub-book to a parent with a series could not work out book_num

main.py

@@ -415,7 +415,7 @@ def new_book():
                 if len(parent.series) > 0:
                     print ("I think this means we have added a sub-book to something in a series already" )
                     for s in parent.bsl:
-                        db.engine.execute( "insert into book_series_link ( series_id, book_id, book_num ) values ( {}, {}, {} )".format( s.series_id, book.id, (s.book_num+1) ) )
+                        db.engine.execute( "insert into book_series_link ( series_id, book_id, book_num ) values ( {}, {}, (select COALESCE(MAX(book_num),0)+1 from book_series_link where series_id={}) )".format( s.series_id, book.id, s.series_id ) )
                 db.session.commit()
             st.SetMessage( "Created new Book ({})".format(book.title) )
             cnt=1

templates/book.html

@@ -66,7 +66,6 @@ function ConfirmRemoveThisSubs_ParentAndSubsFromSeries(pid,bid,rem)
 			Cancel Series change</button>
 		</div class="row">
 	`
-	console.log(rem.length)
 	if( rem.length > 1 )
 	{
 		all='for <span style="background:red" class="text-white"><em>ALL</em></span> series'
@@ -413,7 +412,6 @@ function AddAuthorToBook(num) {
 		<script>
 			$(document).ready( function() {
 				$("#sub_book_content").load("/subbooks_for_book/{{books.id}}")
-				console.log( {{CheckSeriesChange.removing_series|safe}} )
 				{% if CheckSeriesChange is defined and CheckSeriesChange != None %}
 					{% if CheckSeriesChange.type == 'parent' %}
 						ConfirmRemoveParentAndSubsFromSeries( {{CheckSeriesChange.pid}}, {{CheckSeriesChange.bid}},