<feature/request-queue> start implement server requests queue #149
<feature/request-queue> implement synchronious operation runner #149
<feature/request-queue> remove unused ref
<feature/request-queue> fix return value #149
<feature/request-queue> inject sync operation runner in all rest stores #149
<feature/request-queue> start use task runner in rest stores #149
<feature/request-queue> implement request queue #149
<feature/request-queue> refactor. change class name and namespace #149
<stable/0.1> Merge branch 'feature/request-queue' into stable/0.1
Using Guid for challenge Id
<trouble> some trouble
<feature/sync-badges> Merge branch 'trouble' into feature/sync-badges

Conflicts:
	DralloApp/IOs/Drallo.Lib.iOS/Drallo.Lib.iOS.csproj
<feature/sync-badges> implement sync uset stats #153
<feature/sync-badges> add interface for sync single items #153
<stable/0.1> Merge branch 'feature/sync-badges' into stable/0.1
<feature/sync-badges> update build version
<stable/0.1> Merge branch 'feature/sync-badges' into stable/0.1
<feature/sync-badges> uncomment call sync method #152
<feature/sync-badges> update build version
<stable/0.1> Merge branch 'feature/sync-badges' into stable/0.1