ver 0.1.7 - basic kernel

-support x86
-mutiltask
-virtual memory managment
-1 cpu
-io driver
-fsal(fs abstraction layer)
-lpc, based on port communication
-pthread support
-simple sh
-basic tools(ls,ps,cat,pwd...)
and so on...

first release for xbook2, with old kernel & gui

this is an old xbook2 version, with gapi.
atfer this version, kernel will use purekern branch to instead.
--from v0.1.0