About the hadoop-2 profile

[Cheng Lian]

Hi developers,

I have two questions about the Hadoop version Parquet uses. In the Maven 
POM of
Parquet, the default Hadoop version is 1.1.0, while with `hadoop-2` profile
enabled, the version is 2.3.0. So my questions are:
1. What's the Hadoop version the official parquet-hadoop Maven artifact 
(take
   1.6.0rc7 as an example) depends on?

   Namely, when compiled and published to Maven repo, is `hadoop-2` profile
   enabled? (I must confess that I'm not quite familiar with Maven release
   management process, apologize in advance if this is a dumb question.)

2. When building an application which depends on a specific Hadoop 
version, do I
   have to compile my own `parquet-hadoop` library if the Hadoop version is
   inconsistent with the `parquet-hadoop` Maven artifact?

Thanks!
Cheng