Turns out equality returns true false

This pull request simplifies ternary operators like:

```ruby
# before
x == y ? true : false

# after
x == y

# before
x == y ? false : true

# after
x != y
```
Wow, this was hard to grok on second glance.  But basically, this is a "hide toolbar button" method so, if the button is role_start, role_suspend, zone_role_start, zone_role_suspend, we want to only enable this for an AssignedServerRole and if the server started.

I think the new way to write this will be much clearer now:
```ruby
!(@record.class == AssignedServerRole && @record.miq_server.started?)
```

I had to check this out in pry to get the precedence understood:
```
[20] pry(main)> "x" == "x" && true ? false : true
=> false
[21] pry(main)> "x" == "y" && true ? false : true
=> true
[22] pry(main)> "x" == "x" && false ? false : true
=> true
[23] pry(main)> "x" == "y" && false ? false : true
=> true
[24] pry(main)>
[25] pry(main)> !("x" == "x" && true)
=> false
[26] pry(main)> !("x" == "y" && true)
=> true
[27] pry(main)> !("x" == "x" && false)
=> true
[28] pry(main)> !("x" == "y" && false)
=> true
```