Removed unnecessary files.
removed cocoapods's warnings.
removed unused pods.
changed pod file.
- added gitignore
- changed common path
added section's body.
added core data.
imported
added uimodels, profile
implemented registration
add chapter
introduced kiwi
[Feature] create book.
[Feature] create chapter.
added modelList
removed warnings.
removed warnings.
added body view.
[Feature] body edit.
added body.