Improve cross test servers and clients further

This is follow up fixes to THRIFT-3347
All except C# cross tests in tests.json are mostly fixed now.

Java

• Add missing client calls
• Add missing client assersions
• Semantic return code
• Fix insane server handler

Note that because of newly introduced Java testBinary and assertions, many failures are discovered and listed.
Binary incompatibility is tracked in THRIFT-3359 and I'm working on it.

Python

• Fix testException
• Add testMultiException

Javascript

• Fix testInsanity

C++

• Do not return "basic type error" when connection etc. failed

c_glib

• Fix client testInsanity (I forgot to include this to THRIFT-3347)
• Fix server insane handler

Return code

I want to introduce new semantice return values, so updated test/README.md in the pull request.
The timeout bit is already used by test.py.

+ #define TEST_UNKNOWN 64 // 0100 0000 (Failed to prepare environemt etc.)
+ #define TEST_TIMEOUT 128 // 1000 0000