fix "position:fixed" 

fix "position:fixed"
Adjust transition css style not to be so greedy
Merge pull request #35 from junmer/master

fix "position:fixed"
Merge pull request #37 from georgelee1/transition

Adjust transition css style not to be so greedy
Add support for position:fixed, revise genCSS() method to be generate less greedy styles. Resolves #37 Resolves #35
Update comments to reflect v0.1.2
Update CHANGELOG for v.0.1.2
Update CHANGELOG for v.0.1.2 (links to solved issues)
Revise CHANGELOG for v0.1.2 (fix typo)
Revise README and CHANGELOG for v0.1.2
Revise README for v0.1.2
Revise README for v0.1.2
Revise README for v0.1.2
Revise README for v0.1.2
Revise README for v0.1.2