Fix classifier test task
Fix sample training
Sample returns simple hash objects
Load extensions from samples
Require explicit primary_extension
Use implied extensions from samples
Move specific filename samples into their own dir
Add easyant files support to syntax highlighting .ant and .ivy files are both XML
Add easyant sample files
Revert "Add easyant files support to syntax highlighting .ant and .ivy files are both XML"

This reverts commit 0b983546382b25546e15acaf5e30bde7fd207f84.
Update classifier db
Merge branch 'jeanlouisboudart-easyant'
Drop defaults in classifier hash
Clobber before generating classifier
Dump classifier as plain hash
Add nested md5 digest
Compare md5s of dbs
Move db verification into tests
Remove gc for now
Move classifer db to samples.yml