2716- 'localize' rails helper should be tested
Added `depend_on_asset` tags

Compliance with
[sprockets_better_errors](https://github.com/schneems/sprockets_better_errors)
still allow Travis emails
The xlsx mime-type was been registered (unnecessarily) multiple times.  Fixes #2802
rename some variables
Let tables handle arbitrary objects

Specifically to support a clean syntax for tables built from Hashes,
this commit enables you to use the normal clean `column` and `row`
syntax like this:

```ruby
table_for foo: 1, bar: 2 do
  column :foo
  column :bar
end
```

Note that `dom_id_for`, which `attributes_table_for` was already using
but `table_for` wasn't, is definied by Arbre.
fix: dropdown menu click preventDefault
Merge pull request #2809 from fmendez/2802-fix-xslx-specs-warnings

Xlsx mime-type  been registered (unnecessarily) multiple times.
Merge pull request #2717 from elpulgardelpanda/2716-test-localize-api

2716- 'localize' rails helper should be tested
remove unnecessary `include` added in #2717
Merge pull request #2772 from seanpdoyle/master

Added `depend_on_asset` tags
remove stopPropagation
Can pass proc to filter label option
Merge pull request #2824 from SoftSwiss/filter_label

Can pass proc to filter label option
Merge pull request #2815 from sandrew/dropdown-js-prevent_default

Dropdown menu on click navigates to top of the page
test Ruby 2.1.0
so much for DRY code

Lots of view helper-related code by changing the behavior of
`call_method_or_proc_on`, so I had to revert it.

The plan is to combine `table_for` and `attributes_table_for` so they
use the same code, so at least we'll have less duplication because of
that.

Note that I changed the collection-detecting code to do literally what
we expect, instead of trying to class-detect every possible variation.
This was necessary to keep collection decorators working.
Merge pull request #2812 from seanlinsley/feature/1713-support_arbitrary_objects_for_tables

Let tables handle arbitrary objects
Fixing gittip badge
Merge pull request #2828 from BukhariH/GitTip

Fixing gittip badge