make rake rdoc task. change rdoc directory
spcify license
document enhance

document enhance

document enchance
document enhance
make rake all task
Merge commit '87bba15'
enhance comment
enhance comment
enhance comment
enhance
enhance
add ${RB_HOME} handling
update rdoc
use ruby tmpdir library
refactoring
bug fix about timeout option
enhance test case
add test case
add test case
Merge branch 'enh1'