fixed a typo

fixes #1674, fixes #1749, fixes #1623, fixes #1415, fixes #802, fixes #569, fixes #530, fixes #6,
fixes #1540, fixes #1217, fixes #591, fixes #478

feat: you can pass dropdown configuration in `forRoot()` method
feat: now you can add dropdown to body by using `container="body"`

BREAKING CHANGES:
- `DropdownModule` renamed to `BsDropdownModule`, same to all dropdown components added `bs` prefix
- `addToggleClass` option is deprecated, now you need to add `dropdown-toggle` class manually if needed
- `dropdownMenu` menu become a template selector, so `*` should be added
sample:  `<ul dropdownMenu>` should become `<ul *dropdownMenu>`
- `onToggle` event deprecated use `isOpenChange` instead
- `appendToBody` deprecated, use `container="body"` instead, now dropdown behaviour and attachment params alligned with tooltips and popovers
- `keyboardNav` deprecated
- `disabled` renamed to `isDisabled`
- `dropdownToggle` doesn't prevent default behaviour anymore

* Include CDN instructions for Bootstrap 4

* chore(readme): added bs4 cdn instructions

* emit an event with the activeDate and datepickerMode when view is changed

* feat(calendar): activeDateChange output

angular-cli.json renamed to .angular-cli.json as per ng-cli changelog for rc.0.  Changed references in dependent files.

Updated property 'isOpen' into 'show' and 'hide' methods. Through this is possible to use 'toggle' method together with 'show' and 'hide' methods. 
Example: if you want to toggle popover by using a button and close it also by click another button inside the popover.

* fix(dropdown,rating,typeahead): remove global in order to be useable with systemjs and aot

* chore(dropdown,rating,typeahead): replaced MouseEvent by Event

* Fix rollup error.

Rollup cannot process `import * as moment from 'moment'`, instead `import moment from 'moment'` should work.
See https://github.com/rollup/rollup/issues/670

* fix typescript compilation

Bootstrap is not "Twitter Bootstrap" since like 2013 :)

* Fix Bootstrap 4 and card text #1637

Moved card class to a surrounding div so text formats correctly with Bootstrap 4

* Fix Bootstrap 4 and card text #1637

Moved card class to a surrounding div so text formats correctly with Bootstrap 4

* Added instructions for BS4

* Added instructions for BS4 setup with ng/cli

shows how to set up for bootstrap 4 in an angular-cli

* Links added to readme and getting-started for bs4 instructions

fixes #1412

fixes #1612

* added fakeAsync and tick calls to force change detection work in tests

* fixed karma config

* enabled code coverage

* chore(build): fixed karma config (#1606)

* added fakeAsync and tick calls to force change detection work in tests

* fixed disabled tests, removed outdated

* fixed karma config

* fixed event creation to support IE
this "browser" just can't use ctor of Event class...

* chore(build): fixed karma config (#1606)

* fixed disabled tests, removed outdated

* fixed event creation to support IE
this "browser" just can't use ctor of Event class...

* fix(tab.component): Use [ngClass] to avoid conflicts with [class.x] bindings

* Added tests, handle undefined customClass

* - added typeaheadOnBlur event
- added documentation for typeaheadOnBlur
- removed tab event key since blur event handles it
- added getter to _active item

* - fixed syntax error

* - maybe dependency problem?

* - added unit tests

* trying to build again

* Fix Bootstrap 4 and card text #1637

Moved card class to a surrounding div so text formats correctly with Bootstrap 4

* Fix Bootstrap 4 and card text #1637

Moved card class to a surrounding div so text formats correctly with Bootstrap 4