Labels and titles dynamically update and initial loading bug fixed

[hayleefay]

This PR fixes issue #728 by correcting the initial loading values of the assets shown in the hover-over and dynamically updating the title of the plots and the x-axis label.

[hdoupe]

Thanks @hayleefay. I'm reviewing this now.

[hdoupe]

@hayleefay I merged the master branch into your branch and reset the environment which moved your branch to a newer version of taxcalc.

I then received the following error when I tried to do a run:

Here's the traceback from the log:

[2017-11-21 09:27:24,995: WARNING/MainProcess] user mods:
[2017-11-21 09:27:24,996: WARNING/MainProcess] {u'btax_depr_10yr_tax_Switch': False, u'btax_depr_3yr_gds_Switch': u'T', u'btax_betr_pass': 0.0, u'btax_depr_5yr_tax_Switch': False, u'btax_depr_allyr_tax_Switch': False, u'btax_depr_5yr_gds_Switch': u'T', u'btax_depr_15yr_tax_Switch': False, u'btax_depr_25yr_gds_Switch': u'T', u'btax_depr_5yr_ads_Switch': False, u'btax_depr_5yr': False, u'btax_betr_entity_Switch': False, u'btax_depr_3yr_tax_Switch': False, u'btax_depr_25yr_tax_Switch': False, u'btax_depr_27_5yr': False, u'btax_depr_39yr_gds_Switch': u'T', u'btax_depr_39yr': False, u'btax_depr_10yr': False, u'btax_depr_20yr_gds_Switch': u'T', u'btax_depr_3yr_ads_Switch': False, u'btax_depr_15yr_ads_Switch': False, u'btax_depr_7yr_ads_Switch': False, u'btax_depr_20yr_ads_Switch': False, u'btax_depr_15yr': False, u'btax_depr_27_5yr_tax_Switch': False, u'btax_depr_39yr_tax_Switch': False, u'btax_depr_39yr_ads_Switch': False, u'btax_depr_allyr_gds_Switch': False, u'btax_depr_15yr_gds_Switch': u'T', u'btax_depr_20yr': False, u'btax_depr_10yr_ads_Switch': False, u'btax_depr_25yr': False, u'btax_depr_27_5yr_ads_Switch': False, u'btax_betr_corp': 0.3, u'btax_depr_25yr_ads_Switch': False, u'btax_depr_27_5yr_gds_Switch': u'T', u'btax_depr_3yr': False, u'btax_depr_7yr_gds_Switch': u'T', u'btax_depr_20yr_tax_Switch': False, u'btax_depr_7yr': False, u'btax_depr_10yr_gds_Switch': u'T', u'btax_depr_7yr_tax_Switch': False, u'btax_depr_allyr_ads_Switch': False}
[2017-11-21 09:27:38,117: ERROR/MainProcess] Task celery_tasks.btax_async[2da1f1ea-f4fb-4981-843d-b452305f0c44] raised unexpected: ValueError('Records data missing one or more MUST_READ_VARS',)
Traceback (most recent call last):
  File "/anaconda/envs/aei_dropq/lib/python2.7/site-packages/celery/app/trace.py", line 374, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/anaconda/envs/aei_dropq/lib/python2.7/site-packages/celery/app/trace.py", line 629, in __protected_call__
    return self.run(*args, **kwargs)
  File "/Users/henrydoupe/Documents/PolicyBrain/deploy/taxbrain_server/celery_tasks.py", line 156, in btax_async
    tables = runner_json_tables(**user_mods)
  File "/anaconda/envs/aei_dropq/lib/python2.7/site-packages/btax/front_end_util.py", line 23, in runner_json_tables
    out = runner(test_run,start_year,iit_reform,**user_params)
  File "/anaconda/envs/aei_dropq/lib/python2.7/site-packages/btax/execute.py", line 58, in runner
    base_output_by_asset, base_output_by_industry = run_btax(test_run,True,start_year,{},**econ_params)
  File "/anaconda/envs/aei_dropq/lib/python2.7/site-packages/btax/run_btax.py", line 93, in run_btax
    parameters = params.get_params(test_run,baseline,start_year,iit_reform,**user_params)
  File "/anaconda/envs/aei_dropq/lib/python2.7/site-packages/btax/parameters.py", line 169, in get_params
    indiv_rates = get_rates(baseline,start_year,iit_reform)
  File "/anaconda/envs/aei_dropq/lib/python2.7/site-packages/btax/get_taxcalc_rates.py", line 101, in get_rates
    reform=reform)
  File "/anaconda/envs/aei_dropq/lib/python2.7/site-packages/btax/get_taxcalc_rates.py", line 55, in get_calculator
    records1 = Records()
  File "/anaconda/envs/aei_dropq/lib/python2.7/site-packages/taxcalc/records.py", line 119, in __init__
    self._read_data(data, exact_calculations)
  File "/anaconda/envs/aei_dropq/lib/python2.7/site-packages/taxcalc/records.py", line 428, in _read_data
    raise ValueError(msg)
ValueError: Records data missing one or more MUST_READ_VARS

This could be an error on my end if my puf version is off, but I just downloaded a clean copy. So, I'm not sure how that would happen.

[hdoupe]

@hayleefay this looks good. The problems I listed above were on my end. Sorry about that. Thanks for the contribution.