Remove debug warning messages in seldome-used answer rule functions
Merge pull request #37 from dpvc/no-debug-warns

Remove debug warning messages in seldome-used answer rule functions
Merge pull request #36 from mgage/master

Allow knowls to use base64 encoding.
replace tabs by spaces between words in string for $problem_result{msg}
localize some strings using maketext()
Merge pull request #38 from heiderich/master

replace tabs by spaces between words in string for $problem_result{msg} and localize some strings
Merge pull request #39 from goehle/master

Upgrade to essay questions
Merge branch 'pg-dev' into release/pg2.6
Merge pull request #9 from openwebwork/release/2.6

Release/2.6
Merge branch 'develop' of https://github.com/openwebwork/pg