Compile with C++14
Add simple maths operation to date setting
Update changelog
Merge branch 'feature/extended_date_selection' into develop
Display warning if early in the month
Display warning if early in the month
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Merge branch 'feature/warnings_start' into develop
Add new operators
Command estimate
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Merge branch 'feature/wish_estimate' into develop
Prepare the versioning module
Add command save
Add sync command
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Update help
Complete completion
Merge branch 'feature/versioning' into develop
Complete help