j1-template 2021.2.0

• bump 0.10.0 ~> 0.8

• colorator 1.1.0 ~> 1.0

• date 2.0.3 ~> 2.0

• jekyll 4.3.3 >= 3.6, < 5.0

• log4r 1.1.10 ~> 1.1, >= 1.1.10

• mercenary 0.4.0 ~> 0.4

• omniauth 1.9.2 ~> 1.0

• omniauth-oauth2 1.8.0 ~> 1.7

• pathutil 0.16.2 ~> 0.16

• rack 2.2.9 ~> 2.0, >= 2.0.8

• rack-protection 2.2.4 ~> 2.0

• rack-ssl-enforcer 0.2.9 ~> 0.2

• rest-client 2.1.0 ~> 2.0

• sinatra 2.2.4 ~> 2.0

• warden 1.2.9 ~> 1.2