v0.8.0rc4

• 291a7bc (tag: v0.7.6) Release 0.7.6
• 0e0a921 Merge pull request #174 from evo-company/fix-keyerror-for-invalid-fragment-type-name
• 7d50df0 (origin/fix-keyerror-for-invalid-fragment-type-name) Return proper error instead of KeyError for invalid fragment type name