Log classifier improvements

[HirotoShioi]

Log classifier improvments

Added functionality

• Debugging feature
  Now classifier will use CSV file that has list of know issues, solution to classify the problem.

• Adding tags
  It now adds tags to the tickets. We can use the tag to perform analysis, categorize problems and
  ignore any tickets that it has already analyzed.

• Statistics
  Using command showStats, it will provide statistics of current tickets.

There are currently **** tickets in the system assigned to *****************
*** tickets has been analyzed.
**** tickets are not analyzed.
Below are statistics:
analyzed: **
analyzed-by-script: **
cannot-connect: **
cannot-get-db-size: **
cannot_connect_to_wallet_using_network: **
closed_by_merge: **
coin_redemption: **
connection-refused: **

• Provide nice text messages
  Modified main to provide more friendly message to the user.

Issues

• For some reason, classifier adds tag "cannot-sync" to any ticket it has went.
• When analyzing ticket there's very low chance that classifier crash with message below:

*** Exception: Codec.Compression.Zlib: premature end of compressed data stream