adjust and refurbish README
adjust design goals
rename info on source code
add links to documentation
make 'how to run the code' more precise
Merge pull request #3 from PrometheusPi/refurbish-doc

Refurbish doc
comment makefile
add issue number in makefile
add comments to default module list
comment vector class
comment utilities
add comments to random number generators
add comments to main.cu
add comments in plasma.hpp
add comments to kernels
comment parameter file
Merge pull request #10 from PrometheusPi/add-comments

add comments to all code files
remove obsolete copy and set function
(not used in code and old comment says it will not boost performance)
Merge pull request #11 from PrometheusPi/remove-obsoleteFunctions

remove obsolete copy and set function
create uninitialized shared memory
cast to vec
avoid warning