Merge 2d3b027 into 5be7815

q version 3.1.0-beta - automatic immutable caching and direct queries…

… on sqlite databases (harelba#280) + New Packaging Workflow

bump version

all tests passing!

all tests pass except basic module tests because of data-loads removal

Working well now, moved copy-instead-of-attach to choose_db_to_use vs…

… after make_data_available

split data stream and delimited file handling. tests passing (except …

…direct_use which is not supported yet)

Basic qsql file direct support working, no tests yet

atomic_fn is now all over

bump to 2.0.19