[data][xs]: lowercase place ids in data/places.csv.
[#5,data][m]: first pass on pulling down entries.csv.

Apart from pulling down the file there is some cleaning up:

* entries are nicely sorted
* columns are reordered (and censusid removed)
* consolidate on just one entry per place+dataset (for current year)
[#5,scripts][s]: refactor processor to class style setup.
[#5,data][m]: rank and score computed for entries and places.

* start adding tests for data processing which you can run with the test command
[gitignore][xs]: .
Merge branch 'master' of github.com:okfn/opendataindex

Conflicts:
	.gitignore