release v1.1.6.288

- security: EOL's in added header fields are disallowed
- fixed issue with URLEncoded and UTF8 encoded characters
- fixed issue when setting BufferSize from non-zero to zero
- renamed xxmApache to xxmAhttpd, Apache httpd license states non-ASF projects may not use the Apache name
- xxmProject: register with xxm.xml
- xxmIsapi: override default buffering of IIS7 (remember to set Context.BufferSize!)
- xxm.xml supports relative paths in <ModulePath>
- Delphi XE2 support (as well as continued Delphi 7 support with the same source)