Fix timekey generation

eg. Min10_10 should be Min10_15

Redmine #3215 (internal)
Merge pull request #875 from awsiv/master

Fix timekey generation
add test for GenTimeKey
Merge pull request #879 from maciejmrowiec/master

add test for GenTimeKey
COPBL: Add file_select bigger_than(size) body
Merge pull request #880 from lpefferkorn/bigger_than

COPBL: Add file_select bigger_than(size) body
Redmine#2111: eval() function for math evaluation
Redmine#2111: add autogenerated PEG parser