[OLINGO-366] provided operation invokers
Merge branch 'master' into OLINGO-377-FIT
[OLINGO-366] fixed providing delayed operation invocation + composable invoker
[OLINGO-368] Adding async calls for operation invoke, after OLINGO-366
Use commons codec's Base64 in an Android-friendly way
[OLINGO-366] Fixing POJO generation warning
[OLINGO-317] more translatable exceptions

Change-Id: I7cf9ad31b0aa2b136e75133a901516fb02dd11bb

Signed-off-by: Christian Amend <chrisam@apache.org>
[OLINGO-377] Code clean up
[OLINGO-377] Merge branch 'master' into OLINGO-377-FIT