simplify respo styles definitions (has breaking in methods)

#35

changes to:

• .attr()
• .attrs()

also margin and padding support both i32 and f32.

added respo_style() to simplify RespoStyle::default()

fix innerText issues in diffing

c6b0d90

temp fix on some event binding

7880f6b

refine error logs

bf8c7bd

fix input.value set #35

#35

simplify cast_branch by removing result container #34

#34

app use action type defined in RespoStore

060921a

experiment on indent

0.1.7

some defaults; tag 0.1.7

improve docs

42e58fc

retry publising

0.1.6-build1

more comprehensive docs; tag 0.1.6