v1.5.1: Merge pull request #6 from pamburus/feature/jitter

fix: random source for jitter

New Repeator factory methods: With and NewRepeaterExt.

• 'With' returns object that calls C (constructor) at first, then ops, then D (destructor). D will be called in any case if C returns nil. D is able to hide original error an return nil or return error even if the original error is nil.

• 'NewRepeaterExt' returns object that wraps all ops with with the given opw and wraps composed operation with the given copw.

v1.4.1: Merge pull request #4 from ssgreg/feature/fix-exp-backoff

fix: overflow in exponential backoff

v1.4

• fix: Once calls global compose
• ref: some changes in Cpp concept. It is transparent for input errors now, it also panics if D fails
• add: Done, FnDone, FnOnlyOnce
• add: 100% test coverage

Once and FnRepeat

• add: Once and FnRepeat to Repeater and global functions

New `Cpp` concept.

• add: Nope to operations
• add: new function to create Repeater with constructor and destructor - Cpp

More operations & tests.

• add: IsTemporary and IsStop for errors
• add: FnOnError for operations
• add: missing tests for operations

Public release

• add new interface Repeater
• add new concept - OpWrapper
• add new function to create Repeater with wrapping operations
• add new WithContext - a repeater that checks for context errors before operation call

v0.1.0

Initial release.