Update to Bats 1.1.0

[nkakouros]

Due diligence

• [x] I am familiar with the "Reporting issues" section of CONTRIBUTING.md
• [x] I have searched the existing issues and haven't found one that matches what I'm reporting or requesting now.
• [x] If this is a bug report, I have searched the Bash changelog for information that may explain or provide clues to the behavior I'm observing and reference it in the body of the report.

Framework, Bash, and operating system version information

_GO_CORE_VERSION:         v1.7.0
BASH_VERSION:             4.4.23(1)-release
OSTYPE:                   linux-gnu
_GO_PLATFORM_ID:          arch
_GO_PLATFORM_VERSION_ID:  

Description

The BATS_CURRENT_STACK_TRACE from older versions of Bats is used in lib/bats/helper-function and lib/bats/assertion-test-helpers. As it is not defined any more in Bats, the logic of those functions is broken.

I think these breaks are another reason to have these assertions/helper function or others incorporated into bats-core as per https://github.com/bats-core/bats-core/issues/44.