Update rmr2/docs/compatibility.Rmd
added mapr compatibility
Added HDP1.2 compatibility
recover gitignore from old proj
Create README.md
date and version
hbase input examples
dead code no more
avoid abbreviations, rename arg for what it does, not where it's used
just changed the import procedure a bit, hence these changes
treating 0-length as 1 makes no sense

error when only one arg non-zero length, otherwise stil figuring it out
delay recycling to avoid errors when key is NULL
do not make up keys
don't try to recycle nulls
make c.keyvcal work with NULL keys
remember we are splitting here, can't recycle NULLs
can't do mapply with NULL keys
checking in the java code for hbase-io
starting work on non help docs
add libjars for hbase io