fix #294: '>' should indent blocks in visual block mode
fix #294: '>' should indent blocks in visual block mode

vastcharade/Vintageous,zhangtuoparis13/Vintageous,xushuwei202/Vintageous,wbcustc/Vintageous,xushuwei202/Vintageous,denim2x/Vintageous,himacro/Vintageous,guillermooo-forks/Vintageous,himacro/Vintageous,gerardroche/Vintageous,denim2x/Vintageous,wbcustc/Vintageous,vastcharade/Vintageous,zhangtuoparis13/Vintageous,zhangtuoparis13/Vintageous,guillermooo-forks/Vintageous,guillermooo-forks/Vintageous,himacro/Vintageous,denim2x/Vintageous,xushuwei202/Vintageous,wbcustc/Vintageous