Fix build with freetype-2.5.1.
Update to 2.6.3:

Version History
---------------
 2.6.3  - 30 March 2014
        o There have been no documentation changes since 2.6.2

 2.6.2  - 2 March 2014
	o Bug 547386 - Help text for Employee section missing.
	o Bug 723173 - One error and some typos in documentation. Thanks to
	  Imat for the patch.
 	o Bug 725013 - dividends reinvested example text doesn't match
	  graphic. Also remove a useless figure and improve text.
	o Assorted typos and version number corrections.

 2.6.1  - 1 January 2014
	o First documention updates for credit notes
	o Adapt migration documentation to gsettings introduction
	o Move most of the text regarding business features from guide
	  to help, correct links and wording and many small improvements.
	o Add information about the Business tab in book options window.
	o Enable building Japanese PDF without requiring Debian or
	  downloading fonts from anywhere.
	o Add Fedora font paths
	o Adjust image after [23668] update.
	o Doc/guide/C: add cash account to accts-examples-organization2
	o Docs/guide/de: minor corrections of spelling and an
	  extension by Martin Mainka
	o Update Italian translation of guide.
	o Update instructions for Italian translation to adapt them
	  to new generic langcode.


 2.6.0  - 29 December 2013
         o Updated documentation for new GnuCash stable version 2.6.0
	   o Update Preferences section
	   o Menu and Toolbar references
	   o Update Business Documentation: Bobby Ratliff
	   o Budget Features: Bobby Ratliff
         o Update Copyrights, Author lists, and metadata
	 o Add facility to publish docs as e-pubs
	 o Bug 513122 - Documentation doesn't explain how to import
	   account tree.
	 o Bug 604519 - Explain scope of Find Transaction tool.
	 o Bug 608932 - The documentation provided for opening a new
	   stock account is not appropriate
	 o Bug 633524 - Guide: introduce some splits concepts to help
	   with understanding transactions.
	 o Bug 638955 - Add documentation for book closing
	 o Bug 639264 - Add information in Concepts 4.5 to Explain
	   Starting Balance in Reconcile window
	 o Bug 661705 - OMF files not installed at the right place:
	   Yelp doesn't see them
	 o Bug 670354 - [PATCH] Outdated Docs - Assign Starting Invoice Number
	 o Bug 672668 - Add section explaining how to migrate data.
	 o Bug 684709 - Some rearrangement of text and chapters.
	 o Bug 687476 - Document Customer/Vendor overview feature
	 o Bug 688425 - Fix steps in putting it all together section.
	 o Bug 688579 - Run xmllint or variant in make distcheck
	 o Bug 688968 - Investment documentation improvements for
	   chapter about selling shares.
	 o Bug 691762 - Clarify behaviour of Find Transaction dialog
	   box's `Reconcile' criteria buttons.
	 o Bug 692917 - Note for keys when entering transactions.
	 o Bug 693493 - Add text to Tutorial 2.2.3 to explain
	   Debit/Credit Columns in register
	 o Bug 699430 - Describe the Assets over Time barchart Report
	 o Bug 700656 - Tutorial does not explain type of security
	 o Bug 702039 - Canadian stocks are fetched in USD by Finance-Quote
	 o Bug 712308: Double click on parent account doesn't open the
	   register - new behaviour not documented.
	 o Bug 715161 - File structure csv import customers and vendors
	 o Updated Translations: German, Italian
Updated finance/gnucash-docs to 2.6.3