Faster processing of Patent Application/Grant xml

A new ```processFile.rb``` script has been added, which works as follows:
```
## completely process the given files, cleaning up temp files
processFile.rb ipg140311 ipa140313

## same as above but explicitly giving operations
processFile.rb ipg140311 ipa140313 download unzip extract report cleanup

## assuming download is already done, run a few more steps
processFile.rb ipg140311 ipa140313 unzip extract
```
This script is about 10x faster than the current `reeddata2e2.rb` script and gives identical results (as far as I've tested).