updated README, added asimov short story to test file support
added file support with ARGV and compression calculations
added option to compress or uncompress for command line
Added file support for text to binary and back with unpack and pack
1) added method to pack integer array to binary
2) added method to unpack binary to integer array
3) file support nice-to-haves like a printout of compression % and other metrics
deleted lzw_compression to be called vkrunch.rb
Merge pull request #2 from vikram7/vr-file-support

updated README, added asimov short story to test file support