The new CSV report was more configurable and could work on proposals,
processes and comments. However, it had several issues.
In the public area, by default it generated a blank file.
In the admin section, the report was hard to configure and it generated
a file with less quality than the old system.
So until we improve this system, we're bringing back the old investment
CSV exporter.
This commit reverts most of commit 9d1ca3bf.
We were very inconsistent regarding these rules.
Personally I prefer no empty lines around blocks, clases, etc... as
recommended by the Ruby style guide [1], and they're the default values
in rubocop, so those are the settings I'm applying.
The exception is the `private` access modifier, since we were leaving
empty lines around it most of the time. That's the default rubocop rule
as well. Personally I don't have a strong preference about this one.
[1] https://rubystyle.guide/#empty-lines-around-bodies
Keep a blank line before and after private
Keep a blank line before and after protected
Remove extra empty line at class body end
Remove extra blank line
Add final newline
Use 2 (not 3) spaces for indentation
Use 2 (not 4) spaces for indentation
Remove space before comma
Add space after comma
Remove trailing whitespaces
Remove unnecessary spacing
Use snake_case for variable names
Do not use then for multi-line if
Remove unused block argument - i
Use the new Ruby 1.9 hash syntax
Remove unused assignment to variable
Indent when as deep as case
Align attributes
Align end with def
