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fix typo collaborativeFiltering
set JAVA_HOME  and LB_LIBRARY_PATH before installing ddf package
Merge pull request #5 from ddf-project/fix_install_sh_cannot_find_rJava_so

set JAVA_HOME  and LB_LIBRARY_PATH before installing ddf package
clean up scripts
delete sh scripts
update ddf.io
update ddf.io
install ddf-local-log4j.properties to R libdir also
Merge pull request #7 from ddf-project/fix_log4j

install ddf-local-log4j.properties to R libdir also and set the correct path to it
add JAVA_OPTS at least to specify log4j.configuration file
remove pyc files
ignore pyc files
Merge pull request #8 from ddf-project/fix_log4j_python

Fix log4j python
change parameter names in Vector.java
Merge pull request #10 from ljzzju/hwDDF

change parameter names in Vector.java
Add function dropNA(Axis pattern) for user to choose which pattern(row or
column) to use.
fix style
add *.iml in .gitignore
Merge pull request #12 from ljzzju/gitign

add *.iml in .gitignore