[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
[data][xs]: minor refactor to Extractor scripts.
[#5,data][m]: start on summary info (num places, num entries, percent open etc).

* Also add isopen field to entries table
A working API generator for our pelican-datastore plugin. Is WIP but:

* Generates a static JSON API endpoint for each dataset in the datastore
* Supports excluding a dataset
* Supports generating filtered endpoints based on dataset key (e.g.: all entries for 2013)
Support multiple formats on API (now CSV and JSON). Cleanup code.
Small docs changes on custom jinja filters
Fixes to templates. Adding a download page.
Ignore CLI build directories.
Merge branch 'master' of github.com:okfn/opendataindex

Conflicts:
	.gitignore
Add coverage for tests.
Document the API in the README