update RBasic submodule.
resolve #56
Solve all issues of RBasic and update the submodule RBasic
Add necessary .R and .rda files.
Merge pull request #61 from wush978/vis_file

resolve #56
Merge pull request #62 from dboyliao/master

Submodule Update
resolve #64
Merge pull request #65 from wush978/estate

resolve #64
Merge pull request #60 from wush978/master

Suggests and packages
Add espeak for Windows. A few rearrangement to slides.
Merge pull request #66 from dboyliao/master

Add espeak for Windows. A few rearrangement to slides.