app-admin/collectd: Bumped to v5.5.1

- New upstream version (Closes #570766, #517060)

- Non-functional mongodb plugin disabled in ebuild (see upstream
  issue #492, closes #524400)

- Multiple dependency problems fixed

- linux-info eclass usage fixed (Closes #570778)

- Support for new plugins added (amqp, genericjmx, ipvs, modbus, sigrok,
  tail_csv, vserver, write_riemann)

- PYTHON_SINGLE_TARGET support for Python 3.4 and 3.5 enabled

- Documentation improved (USE flag description, elogs)

- Linux capabilities usage expanded to improve running collectd as
  unprivileged user (disable via filecaps USE flag)

- Runscript rewritten

  - Runscript now supports OpenRC's default status function

  - Runscript now guarantees service shutdown

  - Validating configuration before (re)starting daemon

app-admin/collectd/Manifest

@@ -1,2 +1,3 @@
 DIST collectd-5.4.1.tar.bz2 1521907 SHA256 75452129f271cb0aad28e57f12a49070618bbb7b6a9d64cf869e8766fa2f66e0 SHA512 96289f52d3d1da55c862ae9ee2f57972682d7eab87387e97efa41fb5197599e097abd71aed2fe014e26af37c9ae98471e06dd181c725849976242642ce5c9492 WHIRLPOOL 2ed85b9d6d00c4e7dc6af236b637e282f17c6c0b20c1ba3da9c12ea85c5fdea1add2e29165874c7e9620852e422282d489436a4e245b161902f8926185edec16
 DIST collectd-5.5.0.tar.bz2 1824495 SHA256 847684cf5c10de1dc34145078af3fcf6e0d168ba98c14f1343b1062a4b569e88 SHA512 d2c2840f681c10345e02ad8df0f7c581dcb45bee276589fcd96b3dadd281a79ebb3b9a34a186242ef41285dde7fc505432376138ff4f72c4f60f1b840e640017 WHIRLPOOL 6223ca363984ab3777ca89e2cd5011f059b6ca7f5c66c5e7325d3155ce38ef2829caced3ad27e4d5016c5fdba59bb21b9b47d840ea0c4d164c3674b6ee5062ac
+DIST collectd-5.5.1.tar.bz2 1797852 SHA256 f9c5d526e1f0429a7db1ccd90bdf9e23923a2fd43b7285cfda8f0341e5c0bc3f SHA512 1935809571b8f0e0870399385312a5687f441d11e08a0c7d1337384b3790c3436ba84f89226aad979584045cc13bdf88f1350a0f49c94bcd0dbcf12ae4704dae WHIRLPOOL 3efeeb9262344a8a1c0aa068e64f5d45ff536d1fc1399b4599143a6e47740d5a33aedf482dbf9110cc5f0345d624fbe71ff00fc6f7afeee891326617f7979e41