Fixing previous commit while improving performance

Using html to replace the element won't add the data associated with the sidebar.
Merge branch 'master' of github.com:hasadna/anyway
Merge pull request #125 from yosiat/master

Fixing previous commit while improving performance
Fix #118 change inaccurate location marker opacity to 0.5
Fix #121 change date filter ranges to whole last 4 years

For anything else, the user should use the 'choose date' option.
Fix #107 display small accident icons in sidebar
Fix #116 clicking on severity filter checkbox text will also change it
Fixing ordering of the list
Merging
Merging
Setting pointer cursor on the markers sidebar
Removing debug prints
Merge pull request #127 from yosiat/master

Fixing ordering of the list