v2.7.1

On-the-go book support

Bug Fixes

• add summary, on-the-go instructions and #build requirement (ec1d3d0)
• fix anchor (58ba49a)
• jda: add override annotation to error handler impl (30a4423)
• jda: fix example book (0f6b35b)
• jda: update example book (f26e7b7)
• remove feature from readme (a554667)
• remove mention of gh packages (94b079e)
• update maven plugins (36a2a56)
• update readme (8a3271f)
• update username and fill maven requirements (aab256b)

Code Refactoring

• core: change book navigation on #getPage (b694ca3)
• reimagine certian aspects of books (368a3cd)

Features

• core: abstract receive methods (c5793f7)
• core: add ActionableRow#of method for lists (cb645e0)
• core: clickable setting now takes unary operator (82ffb90)
• core: make book mapping possible via jackson (7f43001)
• database: offer default database impl (fb6e820)
• switch cache with db implementation (9d547dd)
• update to 2.7.1 (30e6e89)

BREAKING CHANGES

• feeding books to listener is no longer necessary.
• core: #build now is used to fill sendables with their actionable rows and #setActionableRows is now #addActionableRows
• Book#send() has been replaced with Receivable#receive()
  Owners are set via Book#setOwners() instead of Book#send(), which no longer exists.
• core: Book#setNextClickable() now takes UnaryOperator instead of Clickable