Add hospital pages

Implements #184 - adds individual hospital pages w/ hospital information & data, as well as a list of hospitals. Charts of hospital data are based on this example: https://www.dropbox.com/s/zgxs33o3xkqd7ow/Hospital%20Data%20Website%20Draft%20STROGER.pptx

All hospitals here: http://chicago-atlas-staging.herokuapp.com/hospital/index

- Added a section for general hospital info, contact info, & map/directions 
![image](https://cloud.githubusercontent.com/assets/1406537/3690142/419c5ca4-1346-11e4-9cf9-f9dce63aeeb4.png)
- Added hospital admissions data (total & breakdowns by race & by ethnicity)
![image](https://cloud.githubusercontent.com/assets/1406537/3690154/5e87ed06-1346-11e4-8dc0-2d6114ee139b.png)
Including additional breakdowns within medical-surgical admissions (by age) & non-medical-surgical admissions (by type)
![image](https://cloud.githubusercontent.com/assets/1406537/3690176/893ba8ee-1346-11e4-9228-50535df395f6.png)
- Added revenue data (inpatient/outpatient totals & inpatient/outpatient broken down by source)
![image](https://cloud.githubusercontent.com/assets/1406537/3690217/c90848e2-1346-11e4-81b8-05fb3553d621.png)

@robparal, thanks for your responses to the hospital data questions! After working more closely w/ the data, I've made some assumptions - can you look these over and make sure they are valid?
a. In the source data (excel spreadsheet), the number of total patients by race & total patients by ethnicity is the same as the number of total admissions. So, I'm assuming that the breakdowns by race/ethnicity are actually counting admissions, not patients
b. I'm assuming that the total admissions can be partitioned into medical-surgical admissions (explicitly stated in the excel spreadsheet in the age breakdowns) & non-medical-surgical admissions (not explicitly stated in the excel spreadsheet), b/c the totals over different admissions breakdowns vary.
c. I'm assuming that the admissions broken down by type are all non-medical surgical admissions, b/c when all the admissions by type are summed up (ignoring the double counting columns like total ICU, which  = direct admissions into ICU & transfers into ICU), the total admissions by type = total admissions - medical-surgical admissions.

& a few additional questions:
1. Given that the above assumptions are valid, is % medical-surgical admissions something that's useful to include next to total admissions? I notice that the % medical-surgical admissions varies quite a bit between hospitals, so I thought it could be a high-level indicator of what a particular hospital focuses on.
2. Why do medical-surgical admissions and non-medical surgical admissions have different kinds of breakdowns? E.g. is there a reason why the medical-surgical admissions are broken down by age but not race/ethnicity/type, & vice versa for total admissions? The breakdowns seem pretty arbitrary.
3. Is there a better name for non-medical-surgical admissions? Is there a relationship between medical-surgical vs non-medical-surgical & inpatient vs outpatient?
4. In admissions by type, is there another word for 'type' that better indicates what it means, e.g. specialty, procedure, department, unit?
5. Why is 'actual cost charity care' in the hospital revenue data? It's not a revenue & it's not included in the total revenue sum...not sure what it means. I excluded it from the revenue chart.
6. In the procedures data, it says that there were zero procedures in c-sections rooms in all hospitals in Chicago. This is odd, b/c there are definitely c-sections happening that aren't being captured in the data. Can we get clarification on how the data was produced, so that we can get a sense of the integrity of procedure/room info? I left out the selected procedures data in the hospital page.
7. In the procedures data, can we assume that procedures only take place in their designated rooms? I.e. if we know that there were 7570 procedures in gastrointestinal procedure rooms, can we conclude that there were 7570 gastrointestinal procedures?