eGroupWare 1.0 RC8 released

Normally we want release with this release the final
1.0 package but we found some critical bugs whiche
must fix. Also support for MSSQL database was
complete broken and it is fixed now.

This will be the last RC from eGroupWare and the next release will be final 1.0.

Changes:
- critical bugs fixed
- MS SQL server support is back
- language extensions