fix typo

* Web.HTML.parseURI({url}) => Web.HTML.parseURL({url})
* Web.XML.parseURI({url})  => Web.XML.parseURL({url})
Merge pull request #160 from kamichidu/fix-doc-typo

Web.{HTML, XML}に記載されている関数名を、実際と合わせました
Random: Improve performance of sample({list}, {n}) for long list
DateTime: Fix dependency

Thank you, @daisuzu!
Data.LazyList: Fix dependence
ProcessManager: Fix dependence
png -> svg
README: Add a link
Merge pull request #162 from crazymaster/master

Fix dependence
Merge pull request #164 from crazymaster/README

README: Add a link
Merge pull request #163 from crazymaster/img

Build status badge change png to svg
vitalizer: :Vitalize didn't work
vitalizer: Add synopsis to document
System.File: Fix for Vim 7.4.122
Process: Fix #166
Merge pull request #167 from mattn/fix_166

Process: Fix #166
Data.String: add levenshtein_distance({str1}, {str2}) function.