Clearn unnecessary files
separate programming language into folder pl
Merge branch 'master' of github.com:XueliangHan/xuelianghan.github.com
new folder 0.references
Content update
new folder quotes; add post time-granularity under references, modify 3 index and about and generate.sh
delete pages personal development
new folder skillsets
folder name change from tools to toolkits
new folder un, for uncategoried root posts
new template for markdown file
new folder essays
Clean: move and delete files
Clean to push