1.Rename README.md to readme.md, easy to type
2.Copy all source files from '~/Graduate\ Design/mpilib' into 'src' here.
3.Delete '.svn' dir in mpilib, so src contains no .svn dir.
Update readme.md
Update readme.md

I was so bored to edit this readme file. markdown is so interesting..
Modify mpiname.h
add enumeration {MPI_Init=0, ...}. I think using enum instead of hard-code numbers is good.
Add estimator.c/h
they are used to estimate MPI call time. now they are empty. just return 0.
add .gitignore file
change return type of estimator, use double instead of int. be consistent with timer.
1.Fix a redefine bug in estimator.c/h
2.add a call to E_MPI_Init which will printf some message