Consistent performance all platforms for large data files

Configurable transport means nias can process files of 1million students reliably now on windows as well as unix-like systems.

Some updates still pending in codebase, should be regarded as pre-release. Target for full release 15.08.

v6

v6candidate

oops

test3

RemoveBlanks() in CSV

2nd test release

Test release only.

v0.1 test release

Test release.