Budget finalization improvements

See merge request crown/crown-core!86

Should fix OSX build

Issue #79

Should fix OSX build

Issue #79

Couldn't get C++14 working

Issue #79

Issue #79

Issue #79

This reverts commit 5e32df2d.

Issue #79

Issue #79

Issue #79

Issue #79

1. Introduced FINAL_BUDGET_VOTE_UPDATE_MIN constant
2. Made sure that final budget auto-checking only happens with this interval
3. Added check for votes already saved in AddOrUpdateVote()

Issue #79

Now voteSubmittedTime contains actual timestamp of when the vote was
submitted for a given finalized budget

Issue #79

Issue #79

If there are new votes for proposals, all auto-checked budgets without
votes will be reset to not-checked-yet status

Issue #79

Gitlab build pipeline

See merge request crown/crown-core!83

Fix budget finalization collateral

See merge request crown/crown-core!82

Revert "Target timespan changed to 6 hours"

See merge request crown/crown-core!84

Removed internal curl-ca-bundle.crt certificate. Instead added '--with-darwinssl' and '--with-winssl' options

This reverts commit 9e952ad6.

In accordance to code review comments
Issue #110

Adding extra job templates so we can specify when using tags (or for certain branches) the expiring date of the artifacts.