Fix race condition in HttpRemoteTask

There is a race condition in HttpRemoteTask where it can race on setting the value of the needsUpdate flag. The potential result of this is that we can silently drop a failed HTTP request and not notify any of the callers.
Don't generate so many invokedynamic callsite names

Java 7 doesn't seem to like too many unique callsite names in a single class (Java 8 works ok, though)
It causes execution for queries with many projections to fail with:

    Exception in thread "main" java.lang.BootstrapMethodError: call site initialization exception
        at java.lang.invoke.CallSite.makeSite(CallSite.java:298)
        at java.lang.invoke.MethodHandleNatives.linkCallSite(MethodHandleNatives.java:295)
        at Runnable_1.run404(Unknown Source)
        at Runnable_1.run(Unknown Source)
        at com.facebook.indytest.Main.main(Main.java:8)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
    Caused by: java.lang.NullPointerException
        at sun.invoke.util.ValueConversions.unboxInteger(ValueConversions.java:77)
        at java.lang.invoke.CallSite.makeSite(CallSite.java:282)
        ... 9 more

For future reference, here's a stand-alone test case that reproduces the issue: https://github.com/martint/indytest
Generate all bytecode under a well-known package

It makes it easier to analyze heap dumps and look for class memory leaks
Use permanent sequence table for Hive tests
Simplify Hive partition format tests

The tests for additional types will be added back in a later commit.
This is needed to support tests for file formats that do not support
all of the Hive data types (and for different Hive versions).
Split out drop table for S3
Fix warnings in AbstractTestHiveClient
Refactor HiveType to use enum constructor arguments
Remove old code for wrapped paths
Upgrade to Airbase 27
Move Hive test table scripts to subdirectory
Add Hive integration tests for all file formats