[v1] Progress of Bootlint for Bootstrap v4+

Progress when it comes to porting/removing existing checks (wiki changes not included). Help appreciated.

[x] W001: <meta charset="UTF-8"> ➡ #454
[x] W002: X-UA-Compatible ➡ #426
[ ] W003: <meta name="viewport">
[x] W004: deprecated remote modal ➡ #428
[ ] W005: jQuery (remove for now?)
[ ] W006: disabled tooltip or popover
[x] W007: <button> missing type attribute ➡ #450
[ ] W008: tooltip/popover in .btn-group requires container: 'body'
[x] W009: empty spacer column ➡ #420
[x] W010: .pull-left or .pull-right in .media ➡ #426
[ ] W012: navbar missing inner container
[ ] W013: Outdated version of Bootstrap (remove for now?)
[x] W014: Incorrect carousel targets ➡ #452
[x] W015: Unreleased major version of Bootstrap ➡ #426
[x] W016: Perhaps you meant to use the [disabled] attribute instead of the .disabled class on a .btn ➡ #450
[x] W017: <input> missing type attribute ➡ #450
[x] E001: HTML5 DOCTYPE required
[x] E002: Bootstrap v2 grid ➡ #426
[x] E003: misplaced .row ➡ #422
[x] E004: nested containers ➡ #422
[x] E005: .row.col-*-* ➡ #420
[x] E006: non-<input> .form-control within .input-group ➡ #423
[ ] E007: bootstrap.js & bootstrap.min.js (remove for now?)
[x] E009: forgot about input-group-sm/input-group-lg ➡ #423
[x] E010: input group with multiple .form-controls ➡ #423
[x] E011: .form-group.input-group ➡ #423
[x] E012: .input-group.col-*-* ➡ #420, #423
[x] E013: row children must be columns ➡ #420
[x] E014: column parent must be a row ➡ #420
[x] E015: multiple add-ons on a single side of an input group ➡ #423
[x] E016: dropdown within button group ➡ #450
[ ] E017: Incorrect markup used with the .checkbox class.
[ ] E018: .radio
[ ] E019: .checkbox-inline
[ ] E020: .radio-inline
[x] E021: .active & [checked] ➡ #450
[x] E022: modal within another component ➡ #428
[x] E023: wrong .panel-body parent ➡ #425
[x] E024: wrong .panel-heading parent ➡ #425
[x] E025: wrong .panel-footer parent ➡ #425
[x] E026: wrong .panel-title parent ➡ #425
[x] E027: table.table-responsive ➡ #455
[ ] E028: .form-control-feedback missing .has-feedback
[x] E029: redundant grid column classes ➡ #420
[x] E030: .glyphicon-* without .glyphicon ➡ #426
[x] E031: .glyphicon on element with content or children ➡ #426
[x] E032: incorrectly structured modal markup ➡ #428
[ ] E033: .alert with dismiss button missing .alert-dismissible
[ ] E034: .close button is present but isn't first element in .alert
[ ] E035: .form-horizontal or .form-inline on .form-group
[x] E037: .col-*-0 classes ➡ #420
[x] E038: .media-left/.media-right outside of .media ➡ #426
[ ] E039: .navbar-left/.navbar-right outside of .navbar
[x] E040: .modal.hide ➡ #428
[x] E041: incorrectly structured carousel markup ➡ #452
[ ] E042: .form-control on wrong element or <input> of wrong type
[ ] E043: btn classes on <a>s within .navbar-navs
[x] E044: .input-group must have a .form-control and either an add-on or a btn ➡ #423
[x] E045: .img-responsive on non-<img> ➡ #453
[x] E046: .modal missing [tabindex] ➡ #428
[x] E047: Used .btn on something other than an <a>/<button>/<input>/<label> ➡ #450
[x] E048: .modal missing [role="dialog"] ➡ #428
[x] E049: .modal-dialog missing [role="document"] ➡ #428
[ ] E050: .form-groups cannot be nested
[x] E051: .pull-right and .pull-left classes, and manual style attributes with float: left or float: right are not allowed on .col-*-* elements ➡ #420
[x] E052: .pull-right and .pull-left classes, and manual style attributes with float: left or float: right are not allowed on .row elements ➡ #420

twbs / bootlint

[v1] Progress of Bootlint for Bootstrap v4+ #431