Fixing a conflict with tags

Dependencies

• [2] WMKGTTVL Fixing a compilation error
• [3] QL6K2ZM3 Tags
• [4] CCLLB7OI Upgrading to Sanakirja 0.15 + version bump
• [5] BXD3IQYN Fixing --features git
• [6] I52XSRUH Massive cleanup, and simplification
• [7] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).
• [8] GHO6DWPI Refactoring iterators

Change contents

• edit in libpijul/src/lib.rs at line 100
  [4.60252]→[2.0:116](∅→∅),[4.60252]→[2.0:116](∅→∅)
  − Base32, ChangeId, ChannelMutTxnT, ChannelRef, ChannelTxnT, DepsTxnT, EdgeFlags, GraphTxnT, Hash, Inode, Merkle,