Merge pull request #150 from urbanairship/LIBS-172-experiments-valida…

…te-fix

LIBS-172 | Experiments validate fix, prep for patch release

Merge pull request #148 from urbanairship:5.3.1-release-prep

5.3.1 release prep

Merge pull request #144 from urbanairship/prep_for_530

Prep for 5.3.0 release

Merge pull request #130 from urbanairship/cas-templates

Create and Send with Inline Templates

Merge pull request #121 from urbanairship/LIBS-98

[LIBS-98] update delay object in pipeline's timing object with seconds

Merge pull request #120 from urbanairship/sched-template

LIBS-90 Scheduled push to templates

Merge pull request #118 from urbanairship/email-reg-updates

Email registration opt-in/out updates

verison bump

Merge pull request #108 from urbanairship/474url

fix index error for missing urls.

Merge pull request #107 from urbanairship/4.0.0-version-bump

update version