be more specific about required install of SCM environment
Make Iterable2TokenStream a Reader.

Iterable2TokenStream splits the input into tokens in a way similar to
PlainSymbolTokenizer, but not identical. If it is a Reader instead, the
input could be passed on to PlainSymbolTokenizer to produce tokens in
a consistent and uniform way.
Change the analyzers so that they don't keep the entire file in memory.

Instead of passing a stream to the analyze() methods, and have them
cache the entire contents in a byte or char array, open a new stream
each time the source file should be read.

Also, write the xref files from the analyze() methods. In many
analyzers, this avoids the need for building up a data structure that
holds the full xref output in memory.

This fixes #8.
fix duplicate documents and tests for add/remove files to index
this fixes #7
Fix srcdir for the jrcs build target.

Since the old srcdir was a parent of the actual source root, Ant got
confused and always rebuilt jrcs, also in incremental builds when
jrcs hadn't been changed. Now, incremental builds will only rebuild
it if something has changed in the jrcs code.
fixes for FilePath searches being broken (in QueryBuilder),
cleanups, path tokenizer fixes and tests
fixes issue #9
lucene 4.2.1 , document new query parser, allow path regexp if just one and enclosed in /
auto format code
update lucene 4.2.1 in mvn build and fix packages