Add feature of custom placeholder

It is now possible to add a custom placeholder text using [placeholder]="'some string'". It will, as before, default to an empty string.

Fix dependency security issues

Fixes three security issues of dependencies.

Angular 8

Stable release with support for Angular 8.

Fix formControl issue "unspecified name attribute"

possibly fixes #15

The error will have to do with PR #14. As I am still very limited in time, I gave it a shot with this fix, please try if it works now for you.
Otherwise maybe @wmattei could have a look at it? Also a repro would help, as I cannot reproduce it here.
Cheers!

Add support for reactive forms

Merged #14 to add support for ReactiveForms. Thanks @wmdevelopment

Rework peerDependencies

The peerDependencies have been massively overloaded. Reduced them to just @angular/core, @angular/animations and @angular/material. Rest of the peers will then be forced by those libs.

Fix dependency security issues

A couple of dependencies had security issues. This fixed now.

Bugfixes and background improvements

This fixes both:
#4 and #5
I released as minor version as background change might affect your layout.

Angular 7 stable

Release which adds support for Angular 7

Angular 6 stable

Updated release for Angular 6 which also adds support for [(ngModel)].

Closes:

• #3