Scripts to create csv and json legislator bulk files

json script is straightforward (and easily adaptable to other yamls),
csv script tightly linked to data.
updated atlernate format scripts
Merge pull request #127 from bchartoff/master

Scripts to create csv and json legislator bulk files
linting: Howard McKeon had two wikipedia ID entries somehow, leaving the canonical one
Jo Bonner resigned Aug 2, 2013
corrected CRP ids

Robin Kelley and Mark Sanford had incorrect (duplicate) CRP ids,
created by errer in influence_ids.py (since corrected). Jason Smith had
duplicate similar id, but currently has not been assigned CRP id.
Merge pull request #129 from bchartoff/master

corrected CRP ids
Added Rep Ruiz' youtube account
for joint committees, indicate with a new 'chamber' field whether the member serving is from the 'house' or 'senate'
preserve manually-added House members to joint committees when updating the committee membership file, see #126
run committee membership scraper
Added fb details for rep mcgovern
first pass of approved offices
Adding CC0 legal text
Update README to mention it
Update legislators-social-media.yaml

Fixed the handles for Rep. Jared Polis and Rep. Adam Smith, which were pulling the wrong handles for them.
Merge pull request #134 from jvella/patch-1

Update legislators-social-media.yaml
Updating polis twitter account, in accordance with the discussion at #134
Merge pull request #133 from unitedstates/license

Adding CC0 license for data and code.
Typo on icpsr field name somehow. Fixes #135.