[150458508] Added toggle option for custom logging in Flurry adapter
UnityAds adapter version 2.3.0 (UnityAds SDK 1.3.8)
Merge pull request #46 from hkosacki/150458508_flurry_verbose_logging

[150458508] Added toggle option for custom logging in Flurry adapter
Merge pull request #48 from fyber-lima/fix_unity_150053572

UnityAds adapter version 2.3.0 (UnityAds SDK 1.3.8)
iOS - add changelogs
[150434277] add changelogs
[150434277] moved changelogs to a separate file for each network
[#150434277] add changelogs:
    added information for the latest supported version of SDK for each adapter
Merge pull request #47 from piotr-ruchwa/master

iOS - add changelogs
Merge pull request #44 from gabriel-fortin/add_changelogs_150434277

[150434277] add changelogs