web: add Peter Simons' patch fixing Data.Conduit.Network HostIPv4 error (#171)

(cherry picked from commit 993cae3a74eaa42b720fe51744e5459fd5a4eaa9)

Conflicts:
	hledger-web/Hledger/Web/Main.hs
changelog updates from release branch

give hledger-lib a changelog, update changelogs

(cherry picked from commit a67cee4e5f9e3dc09be86e7bc0e8fd77168a5070)

Conflicts:
	hledger/CHANGES

update changelogs

(cherry picked from commit ef053a42523ff2d57921837896b9ccc0a260cc27)

web: changelog

(cherry picked from commit 105c1d01429680a4e8a11a8c4be06f4ceca4329e)

web: changelog

(cherry picked from commit 3d42c123be7dd51be6586549f1f057052cc6fff9)