Changes from 3.1.0-1 to 3.1.0-2

* Kernel:
- Added function is_empty to eZXMLText datatype
- Improved ezmultiplexer event to let the user select workflow id to be run and class id
- Added site.ini setting for aditional designs in override system ([DesignSettings], AditionalSiteDesignArray )
- Added support for setting cachedir with full path ( CacheDir=/var/ezpublish/cache )
- Fixed a typo in the article template
- Added missing tables to mysql kernel_schema.sql ezkeyword and ezkeyword_attribute_link.
- Added removeKey function to the eZTemplateDesignResource class
- Fixed override by classification ( class attribute on tags )
- Fixed bug in override system which would cause override files to not be used if no
  design keys were set (for instance from shop/basket).
- Added correct permission checking in template creation admin and proper error messages.
- Fixed bug with phrase search, fixed problem with combining phrases with usual words in one search query.
- Fixed bug where printable version used the same cache file as the normal view
- Added data_text5 field to eZContentClassAttribute which is a text type.
- Added support for specifying siteaccess when run cronjobs and also uses default siteaccess value.
- Made sure notification system executes properly when no messages are to be sent.
- Made sure name and type for access is set in access.php when default access is used.
- Added setting in object.tpl which decides if the object should be rendered as a block tag or as inline
- Fixed crash with object tag referencing a non existing object
- Renamed misspelled setting AdditionalSiteDesignList in site.ini
- Fixed problem with permissions for trash. Two additional functions 'restore' and 'cleantrash' has
  been added to content module.
- Added missing information from default admin templates.
- Fixed bug with approval workflow.
- Fixed regexp in .htaccess_root to allow css and js files.
- Fixed corrupt product view admin template
- Fixed broken extension support for new override system
- Fixed clearing of override and cache-block cache when clearing cache in admin
- Removed default wordtoimage rule for :/ which messes up URL's
- Fixed setting correct access type when using default siteaccess
- Fixed subtree handler to not handle objects that no longer exists, this avoids a crash.
- Added support for some options to runcronjobs.php, for instance output can be supressed, debug turned on
  and colors can be added.

*Library :
eZ xml:
- Fixed bug in attribute parsing with the - character, e.g. SOAP-ENV

eZ template:
- Fixed bug in cache-block. Cache blocks where shared between different siteaccesses.

eZ soap:
- Added support for SOAP faults as return data from the server
- Fixed compatibility problems with SOAP responses using the 1999 SOAP schema instance definition
- Fixed setting correct UTF-8 charset in SOAP server

eZ i18n:
- Fixed the new and optimized convertStringFromUTF8 function, it should now create convert correctly.

eZ mail:
- Added support for Content-Type, Content-Transfer-Encoding, Content-Disposition and User-Agent which defaults
  to some sane values.
- Added conversion of emails to a suitable output charset, allowed output formats are defined in setting/site.ini.

* Update:
- Fixed generateoverridesettings.php to create correct Source and MatchFile entries for the .ini file.
- Made sure text codec settings were initialized correctly in updatexmltext.php.

*SQL:
- Some new fields defined in update/database/mysql/3.1/dbupdate-3.1.0-1-to-3.1.0-2.sql