Fix button background color: support #RRGGBBAA (CSS) and avoid breaki…#335

snuricp merged 3 commits intomastercleverpush/cleverpush-android-sdk:masterfrom

hotfix/cp-11067-issues-with-rate-the-app-bannercleverpush/cleverpush-android-sdk:hotfix/cp-11067-issues-with-rate-the-app-bannerCopy head branch name to clipboard