Release 2.0.1

#27 upgrade mySQL database driver
#28 upgrade ala-auth plugin and bootstrap3 plugin

v2.0

Upgraded to Grails 3 and applied 2019 skin:

#22 completed Grails 3 and applied 2019 skin
#23 updated test cases
#25 fixed "create example" defect
#21 deep link expands automatically