'usage' for 'setCliBuilder' and 'setNetCliBuilder' was modified.

	modified:   src/main/groovy/glue/core/cmd/CmdBuilder.groovy
Overloaded 'write' method was replaced by 'append' method.

	modified:   src/main/groovy/glue/core/io/file/FileWriter.groovy
'HttpConnection' class lib was completly refactored.

	modified:   src/main/groovy/glue/core/net/connection/HttpConnection.groovy