[C#] Port for 85579448575bf9c81138835f34be3c55de137abf  ([Java/cpp]: Added semanticVersion to IR.)
[C#] Port of 3a5390e9590a59f6047b6cc99a9f898c9847bdd3 ([Java]: Fix for handling optionality and null values in enum types by propagating to pseudo super type for encoding.)
[C#] Fix ulong support for OTF decoder
[C#] Fix for #88 - also added a build step to generate all the stubs for the FIX messages and check that they compile
[c#] Migrate NuGet creation script from Ant to MSBuild and get CI build to generate the package
Update readme
Merge pull request #89 from qed-/master

[C#] Allow DirectBuffer to be initialised from unmanaged buffer
[C#] Fix compilation warnings and add comments of publicly visible types
[Java]: Provided the ability to access group block length. Enhancement #92.
[Java]: Moved Java perf test from message-codec-bench to sbe project. Issue #90.
[Java]: Moved Java perf test from message-codec-bench to sbe project. Issue #90.
[Java]: Clean up perf-build.xml file.
[Java]: Added static methods to get the headerSize for groups and var data. Enhancement #92.
[Java]: Code formatting fix.
addressing #85. Added maven-ant-tasks and maven.install ant target for installing into local maven repos.
#45: added C++ perf tests into perf/cpp and perf-build.xml
added build of protobuf to perf-build.xml for UNIXes
Updated perf-build.xml link for benchmarking tools.
Merge remote-tracking branch 'origin/master'
[Java]: Introduced HEADER_SIZE constant to repeating groups stub.