Merge pull request #4 from echarles/lucene42

Lucene42
These changes were orginally commited by Eric Chatellier
All I added was a try catch clause in KeepLastIndexDeletionPolicy.java
I also needed to add  -XX:MaxPermSize=128m to the Java Command line to
get it to run.

java -XX:MaxPermSize=128m -jar  luke-4.3.0-jar-with-dependencies.jar
Merge pull request #6 from PeterLenahan/master

Lucene 4.3 changes from Eric Chatellier, plus a syntax correction
Merge branch 'echarles-lucene43'

* echarles-lucene43:
  Upgrade to lucene 4.3
  name with 4.2
  upgrade to lucene 4.2
  Changed titlebar to v4.1.0. Changed date in titlebar to be the date that the application was compiled
merging echarles-lucene43
fix compilation issues