Android dependency 'androidx.core:core' has different version for the compile (1.0.0) and runtime (1.0.1) classpath

updated documentation for addJavaScriptHandler method, updated README.md, updated inline webview example

added return value for JavaScriptHandlerCallback, added flutterInAppBrowserPlatformReady event for javascript, breaking change: javaScriptHandlersMap contains only one callback

upgrade to androidX

added support for iOS inline native WebView integrated in the flutter widget tree (#18, #45), fix #54 #38 #26 #32 #33 #29 #15

Fixed bug where passing null to expiresDate failed

[fix] encode resourceURL

Fixed error: Double value cannot be converted to Int because the result would be greater than Int.max in 32-bit devices

fixing a problem in safari webview and adding tabs to examples

added WebHistory and WebHistoryItem class, added getCopyBackForwardList, goBackOrForward, canGoBackOrForward and goTo methods for InAppWebView and InAppBrowser, updated docs