Merge pull request #62 from crazymaster/master

Fix doc
- Added g:neocomplete#ignore_source_files option.
only include relative soruce when context input is relative

when I'm importing a library start by `.` like `./lib/`, I'm not want to
get files in global path like `/usr/include`, so I let file_include
souce only search relative path when context input is relative.
Merge pull request #66 from perfectworks/master

only include relative soruce when context input is relative
- Improved file_include source a bit.
tiny fixes for a document

neocomplcache からの乗り換えがてらドキュメントを読み直しましたので，
ついでにおかしいと思われるところを少し直してみました．
Merge pull request #67 from rhysd/fix/doc

tiny fixes for a document
- Improved examples.
- Fixed #68 improved completefunc behavior.
- Improved completefunc behavior.
- Improved file/include source.
- Improved include pattern.
- Added g:neocomplete#sources#buffer#max_keyword_width.
- Fixed for echodoc.
- Fixed buffer cache initialization.
- Fixed file_include source.
- Fixed #73 converter_abbr.
- Fixed command line window behavior in vim source.
- Fixed vim source.
- Fixed source initialization.