Blockchain: added GetBlockContaining, GetElementAfter and GetElementBefore methods.
Blockchain: added GetBlockContaining, GetElementAfter and GetElementBefore methods.

pierricgimmig/orbitprofiler,pierricgimmig/orbitprofiler,pierricgimmig/orbitprofiler,google/orbit,google/orbit,pierricgimmig/orbitprofiler,google/orbit,google/orbit