make sed() support replacement function, fixes #115
add grep glob test, * for file name, passes
add grep glob test, ** for dir name, fails it
fix typo
add test for common.expand() and pass it
add ** glob tests for common.expand() and fail it
implement globing and pass tests
fix order issue under node 0.8
remove dependcy on `minimatch`
improve tests on ** for directory name
Merge pull request #117 from utensil/115-sed-replace-fun

make sed() support replacement function, fixes #115
Merge pull request #119 from utensil/118-grep-glob

grep() support for globing, fixes #118
Fix to set state.error before throw the exception
0.3.0
Merge pull request #120 from gnomo567/master

Fix to set state.error before throw the exception
remove v0.8 from travis (jshint broken)
Merge pull request #116 from idearat/master

Add -l and -s support to grep.
Revert "Merge pull request #116 from idearat/master"

This reverts commit 65b658d1e47f380e4a50a859a871c8c48d1bd775, reversing
changes made to e88679a4a9146017cc9821efa4645acc7ef428c4.