Added and improved READMEs for modules in extensions, extras, postprocess

apache-commons/README

+Java libraries; used for logging and http/https access in Extensions, from [http://commons.apache.org/]

extras/README

+Contains templates, clipart galleries, palettes, symbol font etc.

jfreereport/README

+Java library providing basic functionality for the report builder, from [http://www.object-refinery.com/jfreereport/]

languagetool/README

+Style and grammar checker for various languages written in Java, from [http://www.languagetool.org/]

migrationanalysis/README

+Wizard to analyze potential problems when migrating from MSOffice to LibreOffice.
+
+See also "Read Me.odt" in this module directory.

mysqlc/source/README → mysqlc/README

----------- Status -------------------------------------------------------------
+The MySQL driver for LibreOffice.
+
+== Status ==
 
 The code is on a PREVIEW level. PREVIEW means pre-alpha.
 
----------- Requirements -------------------------------------------------------
+
+== Requirements ==
 
 The MySQL driver for OpenOffice.org (MySQL Connector/OpenOffice.org - C/OOo)
 requires two external libraries to be build:

nlpsolver/README

+This extension integrates into Calc and offers new Solver engines to use for optimizing nonlinear programming models.

postprocess/README

+Postprocessing and checking of files delivered by other modules.
+
+This module hast to be the last one before creating install sets in module 'instset_native'.

reportbuilder/README

+Oracle report builder extension, from [http://extensions.services.openoffice.org/project/reportdesign].

sdext/README

+Extensions for the Impress and Draw applications.

swext/README

+Writer extensions (currently only MediaWiki Extension).

tomcat/README

+From [http://tomcat.apache.org/]. Patched.

xpdf/README

+PDF-viewer library from [http://www.foolabs.com/xpdf/].