Updated Angular dependencies to latest RC

This also drops support for Angular < 8.0.0-rc.5.

browserslist

@@ -7,5 +7,3 @@ last 2 versions
 Firefox ESR
 not dead
 # IE 9-11
-
-Chrome 41 # Googlebot

package.json

@@ -42,11 +42,11 @@
   },
   "homepage": "https://github.com/FortAwesome/angular-fontawesome",
   "dependencies": {
-    "@angular/common": "~8.0.0-rc.2",
-    "@angular/compiler": "~8.0.0-rc.2",
-    "@angular/core": "~8.0.0-rc.2",
-    "@angular/platform-browser": "~8.0.0-rc.2",
-    "@angular/platform-browser-dynamic": "~8.0.0-rc.2",
+    "@angular/common": "~8.0.0-rc.5",
+    "@angular/compiler": "~8.0.0-rc.5",
+    "@angular/core": "~8.0.0-rc.5",
+    "@angular/platform-browser": "~8.0.0-rc.5",
+    "@angular/platform-browser-dynamic": "~8.0.0-rc.5",
     "@fortawesome/fontawesome-svg-core": "^1.2.4",
     "@fortawesome/free-regular-svg-icons": "^5.3.1",
     "@fortawesome/free-solid-svg-icons": "^5.3.1",
@@ -55,10 +55,10 @@
     "zone.js": "~0.9.0"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "~0.800.0-rc.2",
-    "@angular/cli": "~8.0.0-rc.2",
-    "@angular/compiler-cli": "~8.0.0-rc.2",
-    "@angular/language-service": "~8.0.0-rc.2",
+    "@angular-devkit/build-angular": "~0.800.0-rc.4",
+    "@angular/cli": "~8.0.0-rc.4",
+    "@angular/compiler-cli": "~8.0.0-rc.5",
+    "@angular/language-service": "~8.0.0-rc.5",
     "@types/fs-extra": "^5.0.4",
     "@types/jasmine": "~3.3.12",
     "@types/node": "~11.13.9",
@@ -89,4 +89,4 @@
     "icon",
     "svg"
   ]
-}
+}

src/lib/package.json

@@ -36,8 +36,8 @@
   ],
   "peerDependencies": {
     "@fortawesome/fontawesome-svg-core": "^1.2.0",
-    "@angular/common": "^6.0.0 || ^7.0.0 || ^8.0.0-rc.2",
-    "@angular/core": "^6.0.0 || ^7.0.0 || ^8.0.0-rc.2"
+    "@angular/common": "^8.0.0-rc.5",
+    "@angular/core": "^8.0.0-rc.5"
   },
   "ngPackage": {
     "lib": {