Merge pull request DaHaiz#45 from ONE-LOGIC/release/v0.5.1 Release/v0.5.1
bump version number, build dist files
bump version number
bump version number, add flowchart.css to dist
bump version number, build main file
v0.3.5 v0.3.5
v0.3.4 v0.3.4
v0.3.3 v0.3.3
v0.3.2 v0.3.2
'0.3.1'