Modify code style.

li .highlight add -margin and padding,
inline code padding small change.
Fix li blockquote padding.
fix ol padding and margin.
Style change.

- Header font-weight to bold
- inline code remove background, normal font size
- H1 no uppercase
- form add top margin
remove upcase class for post h1
Add copyright info
Update style, change blockquote and pre code style.
Merge branch 'master' into gh-pages

Conflicts:
	_config.yml