apply new goimports , change travis to go mod
modify codes to support changed keystore and signing functions
add iLogger in dep
remove keyGenOpt from keyFile - unused after using x509 key marshal f… …unction
modify codes for supporting changed functions and types
modify readme for applying new version of heimdall
troubleshoot about RSA public key's SKI duplication
versio 0.1.2
version 0.1.1
initial version