Changes from 503g to 504e

Changes

Relationships chart has larger icon option
Better use of space when exporting pictures.
Export now takes account of margins when a picture is large.
Tidy text handles paragraph alignment settings
Changed export page size text from "Select Page Size" to "Set A Custom Page Size"
Added a small indicator to show selected tab. This is switched on by Settings -> Appearance-> Tabs -> Highlight Selected Tab
On export paragraphs are separated by paragraph mark rather than line feed.
Better tidy text
Improved background spell checking
Improved interface for padding critique.
Cards on story board more like 5x3 index cards
Story board remembers zoom setting
Option to set/hide colored titles on story board
New events now use story date not current date.
Menu shortcuts or File Save, File Save As, New Project and Book Outline now work anywhere.
Chapters, scenes and characters can specifiy a type. This can be shown on the tree and new types can be added.
The Unicode character picker now shows characters using the currently selected screen font.
Added help index.

Bug Fixes

Fixed relationship chart bug with number of levels shown
Fixed bug where justified formatting is forgotten by editor.
Fixed bug where picture link at start of line is lost on export if 'Change Paragraph Indents' is selected on Tidy Text.
Fixed export bug where tidy text setting could affect underline
Fixed export bug when paragraphs set to justified
Background spell check indicator position fixed for 1.5 and double line spacing
Cursor at correct position after text paste.
Cursor position remembered for each tab.
Fixed tidy text bug with remove duplicate spaces.
Fixed bug with link insertion when text selected.
Fixed bug when completion value =100 for story outline
Fixed bug when opening project with illegal XML sequence.
Fixed bug where synonym replace failed.
Fixed OS X picture copying bug.
Fixed bug when switching projects and chapter selected.
Changed dialog shown on OS X when changing spell checker dictionary