Lmdb refactor

New interlayer between LMDB backend and journal (and further databases), with focus on ease-of-use and centralised error handling.

Some (minor?) performance improvements by avoiding copying stuff. For example merging changesets has half usage of memory.

Journal completely rewritten with focus on code readability and modularity.

Kasp DB and Zone timers also use new LMDB interlayer to maintain compatibility and slightly improve the code.

added 23 commits

• 6edcde54...a10d5a5c - 14 commits from branch master
• 8e05e467 - new implementation of LMDB layer and Journal
• 077761a4 - kjournalprint: uses new journal implementation
• a1172dda - journal: serialized_size segfault in zone-in-journal
• d66efc2b - zone load: using new journal implementation
• 39b61bab - nameserver/ixfr: uses new journal implementation
• c684ae64 - server+zone: using new implementation of journal for everything
• bfd512e2 - kasp_db now using new LMDB interlayer + improvements
• ba7caeb8 - timers: using new lmdb implementation, + code organization
• 64109c8d - removed old journal implementation

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changed the description

assigned to @mkarpilovskij

added 4 commits

• e05c057b - fixup leak
• 0035ab0d - fixup timers
• 68fcd0cb - fixup apply
• 3c2c9187 - fixup kaspdb

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added 1 commit

• 51abfa9d - fixup impl

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added 1 commit

• f8c16bf2 - fixup ixfr 3

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added 1 commit

• 2d2567e3 - fixup kasp 9

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added 9 commits

• e452e347 - new implementation of LMDB layer and Journal
• b231e251 - kjournalprint: uses new journal implementation
• e463c290 - journal: serialized_size segfault in zone-in-journal
• 47444539 - zone load: using new journal implementation
• 7123159c - nameserver/ixfr: uses new journal implementation
• 270b8895 - server+zone: using new implementation of journal for everything
• a3146f10 - kasp_db now using new LMDB interlayer + improvements
• d5fc9877 - timers: using new lmdb implementation, + code organization
• dee0faf0 - removed old journal implementation

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added 1 commit

• 0b399717 - fixup: whitespace and typos

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changed milestone to %2.8

added 44 commits

• 0b399717...cb4c1973 - 34 commits from branch master
• b3994a80 - new implementation of LMDB layer and Journal
• d009b4c9 - kjournalprint: uses new journal implementation
• 176cec80 - journal: serialized_size segfault in zone-in-journal
• 7a6bd7ad - zone load: using new journal implementation
• c22278dc - nameserver/ixfr: uses new journal implementation
• 053c57c5 - server+zone: using new implementation of journal for everything
• e812c8e0 - kasp_db now using new LMDB interlayer + improvements
• 1639c261 - timers: using new lmdb implementation, + code organization
• 2e0e0690 - removed old journal implementation
• 817d7f49 - fixup: whitespace and typos

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added 11 commits

• 817d7f49...65c54f81 - 2 commits from branch master
• d9baaefc - journal: add new implementation of LMDB layer and Journal
• 806f5331 - kjournalprint: uses new journal implementation
• 765674d8 - journal: serialized_size segfault in zone-in-journal
• bf0cbeda - zone load: using new journal implementation
• 11e54868 - nameserver/ixfr: uses new journal implementation
• 134e1583 - server+zone: using new implementation of journal for everything
• b63b3ceb - kasp_db: use new LMDB interlayer + improvements
• 9f317bcf - timers: using new lmdb implementation, + code organization
• 5706029f - journal: remove old journal implementation

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added 9 commits

• 020c2984 - journal: add new implementation of LMDB layer and Journal
• 3f65bdeb - kjournalprint: uses new journal implementation
• 26dad054 - journal: serialized_size segfault in zone-in-journal
• 4c98f963 - zone load: using new journal implementation
• efd0da5e - nameserver/ixfr: uses new journal implementation
• 05b5b37f - server+zone: using new implementation of journal for everything
• 0618dd01 - kasp_db: use new LMDB interlayer + improvements
• 7a714965 - timers: using new lmdb implementation, + code organization
• e3e65b56 - journal: remove old journal implementation

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added 63 commits

• e3e65b56...7ae5866a - 54 commits from branch master
• 0acc6a71 - journal: add new implementation of LMDB layer and Journal
• 0da6463d - kjournalprint: uses new journal implementation
• 7eb52b63 - journal: serialized_size segfault in zone-in-journal
• cb78554c - zone load: using new journal implementation
• d046e42e - nameserver/ixfr: uses new journal implementation
• 83688ddd - server+zone: using new implementation of journal for everything
• f821295a - kasp_db: use new LMDB interlayer + improvements
• 844209ef - timers: using new lmdb implementation, + code organization
• 8d2ac727 - journal: remove old journal implementation

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added 2 commits

• d4315eb2 - nitpicks
• fc9ae73c - fix on 32bit platform

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added 1 commit

• 783fad13 - journal: fix handling usigned types

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added 2 commits

• 0f69456a - kaspdb: fix compiler warning "control reaches end of non-void function"
• 1bf1a469 - journal_metadata: fix compiler warning "broken strict-aliasing"

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merged

mentioned in commit c3b3d54f