Force large patches to be whitelisted in .bigfiles file
Allow for whitelisting not compressed files
email: Introduce limit for number of lines in generated emails
adc/create: Make error in creating github non fatal

Sometimes github can down or return error. However we want to continue
with our scripts in such circumstances.
pldgithub.py: Move printing of help message to separate function
pldgithub.py: Add rename command
Merge changes dealing with big diffs

* max_diff:
  email: Introduce limit for number of lines in generated emails
  Allow for whitelisting not compressed files
  Force large patches to be whitelisted in .bigfiles file