[update] added style and level to bullets
Update .gitignore
Added to-do list
[refactor] Pulled out worthless namespaces in document part; updated tests accordingly
Added install task and bumped version
[fix] changed dependency from 'active_support' to 'activesupport'
[improvement] added borders to table, with border color and style as options
[skip] Updated to-do
[testfix] Better test for bullets
[improvement] Better styles.xml template
[improvement] Improved document test for all features