Travis: Conditional android components (#194)
Travis: Conditional android components (#194)

* Travis: Use environment variable in android components

* Travis: add targetSDKVersion to android components

algolia/algoliasearch-client-android,algolia/algoliasearch-client-android,algolia/algoliasearch-client-android,algoliareadmebot/algoliasearch-client-android,algoliareadmebot/algoliasearch-client-android