Merge pull request #67 from vishnupillai/master

Use default logger when no log source logger or listeners
getOutstandingTransactions needs to check isp
Fixing proguide typo
Merge pull request #68 from barspi/master

Fixing proguide typo

[ci skip]
Check if classloader is already registered
Updated docbook 4.5 repo, updated version

[ci skip]
doc: Fixing proguide typo [ci skip]
doc: Mentioning field 60 in iso8583 example and fixing data field mismatch between table and explanation [ci skip]
Merge pull request #69 from barspi/master

Some proguide fixes
Merge remote-tracking branch 'upstream/master'