Common code cleanup

Moved scooper specific pieces out of common.php
Updated common.php to latest version
Upped API call timeout to 30 seconds
Added Venture Firm / Portfolio specific functions

New functions to pull a list of venture firms and their investments
from Crunchbase into a CSV
Added new way to export companies from Crunchbase using a list of CB permalinks
Updating scooper_common files to the latest versions from jobs_scooper
Putting original call to __main__ back
More error handling
Fixed issue where exclude_moz = 1 would not be set
Migrated most Crunchbase calls to the V2 API
New config.ini for passing in the service keys & IDs

Also added CBv1 and CBv2 support
Crunchbase: skip records w/o company names; don't kill the whole run
Added composer settings
Updating scooper_common files to the latest version

Also, added new array_flatten() function that does a much better job
collapsing hierarchical arrays to a string with delimeters.
Cleaned up to match new scooper_common

Also now match style of require_once calls
New major version of Crunchbase Plugin

-- The plugin now gets many more expanded facts for an organization and
includes them in the resulting CSV (example:  images, current_team,
etc.)
-- Additionally, it will go back put to Crunchbase and pull down the
extended facts for every funding_round record for the organization.
-- No longer prefixes the resulting data with cb.*; matches the other
plugins again now.
-- Cleaned up to match new scooper_common
-- Also now match style of require_once calls
New options:  -use_config_ini_for_ids and -crunchbase_url

 -use_config_ini_for_ids to use an INI file with the service IDs in it.
See the example_config.ini for the possible INI file values.

The -crunchbase_url option allows you to export the results from any
Crunchbase API call to a CSV.  Scooper will take care of adding the
Crunchbase API parameters to the API call URL.  If your API call
returns more than one page, Scooper will merge them into one result set
for you up to a max result of 20 pages.