Remove unnecessary lines in DataSet:__index
Update the array module
Fix a missing parameter in the H5Ldelete call
Update array.lua
Update array.lua
Utilize more general copy function instead of extract
Support read and write with scalar data sets
Improve quality of examples, add one
Update README
Fix bug in example h5ls.lua and remove unnecessary build step in README
Merge branch 'master' into newclass

Conflicts:
	LuaHDF5.lua