Remove contribution scopes that is only used on admin
Fix tabs style for channel admin
Merge pull request #396 from neighborly/jl-move-contributions-scopes-to-admin

Remove contribution scopes that is only used on admin
Use dotenv to store data of Configuration class
Remove fields using base_url and platform_fee from configurations
Remove .env from git
Add port to .env.example
Copy .env.example to .env on bootstrap
Add upcase to configuration class

Since all the configurations in enviroment usually are all upcase.
Refactor configuration specs
Remove unnecessary secure_review_host configuration

This was needed when the https was only for the checkout page, and now since
all the site is under https, it does not make sense anymore.
Remove unnecessary configs from spec_helper
Remove check for existence of configuration in monkeymail initializer
Drop report database views
Update seed files to use new kind of configurations
Migrate ProjectTotal model to plain Ruby code
Migrate ContributionReportsForProjectOwner to ruby code
Tests for ContributionReportsForProjectOwner class
Convert ProjectFinancial to ruby class w/o ActiveRecord
Add missing configs to .env.example