Fresh start import of XoopsCore 2.6.0 from Sourceforge SVN

This import has no history, so for any historical research,
please use the sourceforge SVN. This is intended to give us
a fresh clean start as we continue the development of
XoopsCore 2.6.0 with some new tools and new techniques.
Updated xml files for unit tests so they would run with Doctrine.
Updated init_mini.php so it would be dynamic instead of hard coded.
Updated class\database\DatabaseFactoryTest.php to incorporate doctrine call.
add sripts for phpunit
Modify path variables
Modify path variables
Small change to define legacy $xoopsDB global in installer when needed.
Merge branch 'master' of https://github.com/XOOPS/XoopsCore
config files variables configuration
config files variables configuration
Convert to schema, fix several issues.

Install failing as table is also defined in system module, schema mechanism is more tolerant.
Move language out of sql file and into modinfo language file.
Move install inserts out of sql file and into install script.
Merge pull request #33 from geekwright/master

Convert to schema, fix several issues.
Fix URLs in User Menu, convert to schema
Merge pull request #34 from geekwright/master

Fix User Config URLs in User Menu, convert to schema
Register not properly cleaning activation variables
Fix license link, plus a little reformatting
Handful of little fixes for minor irritants.
Merge pull request #35 from geekwright/master

Handful of little fixes for minor irritants.
Updates to installer for xoop_lib location and Doctrine

Present path definitions early, so we can use code from XOOPS and vendor libraries more freely.
Convert all database access to Doctrine or XOOPS system calls. It still defines $xoopsDB for legacy support when core code being called still depends on it.
Extended database driver selection to include all platforms Doctrine supports. These will be presented for TESTING and EXPERIMENTAL use only. At present, the PDO MySql driver is the only one offically supported. The list presented is sensitive to what is available and installed in PHP. In addition to MySql, there is support for SqLite, PostGreSql, Sql Server, Oracle and IBM DB2. There are still issues in core when using anything but PDO MySql or MySqli drivers, but progress is being made, and an installer that can generate test cases is an important step.
A new format was introduced to pass the varied information required by new drivers from installation to the running system using xoops_data/data/secure.php. XOOPS_DB_PARAMETERS is a serialized array of connection information that can be presented to the connect function. The familiar XOOPS_DB_* defines are still populated, but are not directly used to establish the database connection, unless the XOOPS_DB_PARAMETERS array is not set.
Merge pull request #36 from geekwright/master

Updates to installer for xoop_lib location and Doctrine
Add explicit exit so we don't terminate randomly on some fatal error.