feat: add compatibility with rxjs 6 and angular 6 (#611)

BREAKING CHANGE:
  The RXJS imports are now optimized for RXJS6.
  Effectively when using Angular 5 and thus RXJS 5,
  more code from RXJS may end up in your bundles,
  leading to a larger bundle size. This DOES NOT
  affect Angular 6 and RXJS 6. We suggest to upgrade
  to Angular 6 when possible!

Author: gjdev

bundle/src/components/snackbar/mdc.snackbar.service.ts

@@ -1,10 +1,8 @@
 import { Injectable, Optional, Renderer2, SkipSelf } from '@angular/core';
 import { getCorrectEventName } from '@material/animation';
 import { MDCSnackbar, MDCSnackbarFoundation } from '@material/snackbar';
-import { Observable } from 'rxjs/Observable';
-import { Subject } from 'rxjs/Subject';
-import { filter } from 'rxjs/operators/filter';
-import { take } from 'rxjs/operators/take';
+import { Observable, Subject } from 'rxjs';
+import { filter, take } from 'rxjs/operators';
 import { MdcSnackbarAdapter } from './mdc.snackbar.adapter';
 import { MdcSnackbarMessage } from './mdc.snackbar.message';
 

bundle/src/components/tabs/mdc.tab.bar.directive.ts

@@ -1,7 +1,7 @@
 import { AfterContentInit, ContentChild, ContentChildren, EventEmitter, forwardRef, QueryList, Directive, ElementRef,
     HostBinding, HostListener, Input, OnDestroy, Optional, Output, Renderer2, Self } from '@angular/core';
 import { NgControl } from '@angular/forms';
-import { Subscription } from 'rxjs/Subscription';
+import { Subscription } from 'rxjs';
 import { MDCTabBarFoundation, MDCTabBarScrollerFoundation } from '@material/tabs';
 import { MdcTabBarAdapter } from './mdc.tab.bar.adapter';
 import { asBoolean } from '../../utils/value.utils';

bundle/src/components/tabs/mdc.tab.router.directive.ts

@@ -1,7 +1,7 @@
 import { AfterContentInit, ChangeDetectorRef, ContentChild, ContentChildren, EventEmitter, forwardRef, QueryList, Directive, ElementRef,
     HostBinding, HostListener, Input, OnChanges, OnDestroy, Optional, Output, Renderer2, Self } from '@angular/core';
-import { Subject } from 'rxjs/Subject';
-import { takeUntil } from 'rxjs/operators/takeUntil';
+import { Subject } from 'rxjs';
+import { takeUntil } from 'rxjs/operators';
 import { NgControl } from '@angular/forms';
 import { NavigationEnd, Router, RouterLink, RouterLinkWithHref } from '@angular/router';
 import { MDCTabFoundation } from '@material/tabs';

bundle/src/components/utility/router.active.detector.ts

@@ -1,6 +1,6 @@
 import { ChangeDetectorRef, QueryList } from '@angular/core';
-import { Subject } from 'rxjs/Subject';
-import { takeUntil } from 'rxjs/operators/takeUntil';
+import { Subject } from 'rxjs';
+import { takeUntil } from 'rxjs/operators';
 import { NavigationEnd, Router, RouterLink, RouterLinkWithHref } from '@angular/router';
 
 /**

bundle/tools/ngbundler/index.ts

@@ -29,12 +29,8 @@ const globals = {
   '@material/textfield/icon': 'mdc.textfield',
   '@material/toolbar': 'mdc.toolbar',
   '@material/tabs': 'mdc.tabs',
-  'rxjs/Observable': 'Rx',
-  'rxjs/Subject': 'Rx',
-  'rxjs/Subscription': 'Rx',    
-  'rxjs/operators/filter': 'Rx',
-  'rxjs/operators/take': 'Rx',
-  'rxjs/operators/takeUntil': 'Rx',
+  'rxjs': 'rxjs', 
+  'rxjs/operators': 'rxjs.operators',
   'tslib': 'tslib'
 };