v20121124

- Add R18 mode only for member/member's bookmarks download.
  - Set r18mode = True to apply.
- Fix page limit detection.
Fix issue #15, add R-18 mode in search by tag
add check if no image in process member
Fix issue #14: ignore showcase for download by tag
Update no image detection for member
v20121208
Update title parsing for image
Fix title and caption parsing
v20121215

- Fix title, tags, and caption parsing.
- Add new filename format for download by tags:
  -%searchTags%  ==> for download by tags, add searched tag keyword.
Update unittest
Update to parse search tag from command line
Update readme to include error codes
Fix end page limit.
Update parser for pixivArtist
v20130128
Update fix for download by tags
Update last page detection for pixiv tags
v20130201

Update imageDownload to skip if got 502 error.
Update Parser and downloadImage()
Update parser for new images from bookmark