v0.9.14

Fix: the selenium.SwitchToFrame action fails to identify the frame by index.
Speed up screenshots.
Add $encrypt and $decrypt APIs.
Add explicitWaitSec argument at test action level for all Selenium actions.
Fix: $array is misbehaving when passed-in Java primitive arrays.
Improve argument names for WriteTextFile and ReadTextFile.
Add CompressGzip, ExtractGzip, EncodeBase64, DecodeBase64, EncodeUtf8 and DecodeUtf8 actions.
Add Format action.
Add encrypt command to CLI.
Add selenium.ReadUrl action and deprecate selenium.ReadCurrentUrl.
Add selenium.AssertUrl action.