Add unicode support for strong/em regex.
some edge case tests for the code tag
Merge pull request #72 from cebe/code-edge

some edge case tests for the code tag
Remove /u flag from '*' chars. Add /u to urls.
Remove one unnecessary /u flag.
Merge pull request #69 from KaneCohen/master
improve parsing of list item and code block by measuring line indentation
dense list items that follow sparse ones should not be rendered as sparse ones
add contributing guidelines
improve consistency of list item
improve contributing guidelines
outdented is shorter and probably more accurate
simplify em/strong routine

retry to search em/strong markers to fix nested em/strong correctly
Merge pull request #84 from wkpark/fix-em-strong

simplify em/strong routine
Merge branch 'master' into better-extendability

* master:
  simplify em/strong routine
  outdented is shorter and probably more accurate
  improve contributing guidelines
  improve consistency of list item
  add contributing guidelines
  dense list items that follow sparse ones should not be rendered as sparse ones
  improve parsing of list item and code block by measuring line indentation
  Remove one unnecessary /u flag.
  Remove /u flag from '*' chars. Add /u to urls.
  some edge case tests for the code tag
  Add unicode support for strong/em regex.