fixup tests to work with changes in jcardsim
add gradle as build tool

- add build.gradle
- add gradle wrapper for unix and windows
remove trailing white spaces
update gitignore for gradle
configure travis to skip install phase

- replace pre_install with install so it won't run gradle install phase
Merge branch 'feature-introduce-gradle-build' of ssh://github.com/fidesmo/ykneo-oath

Conflicts:
	test/test/pkgYkneoOathTest/YkneoOathTest.java