Even more improvements

[snapshot] Add support for concurrent simulators with Xcode 9 (#9570) via David Ohayon
[deliver] Show error message when attempting to upload unsupported languages for screenshots (#9351) via Josh Holtz
[pilot] Use new TestFlight API to find testers by full-text search (#10100) via Joshua Liebowitz
[snapshot] Modify `update` command to find Xcode 8 helpers also (#10106) via Felix Krause
[snapshot] Show error message if no snapshot helpers can be found (#10105) via Felix Krause
[match/sigh] Filter returned profiles based on the platform (#10029) via Nicolas Braun
[snapshot] Update snapshot usage instructions (#10096) via Felix Krause
[gym] Fix issue where export_options.provisioningProfiles cannot be merged (#10092) via Takashi Hasegawa
[deliver] New `languages` config option and other improvements (#9337) via Josh Holtz
[gym] Fix error where provisioning profile mapping is created incorrectly in an Xcode project with multiple configs (#10085) via Josh Holtz
[docs] Correctly format nested lists (#10089) via Joe Masilotti
[spaceship] Add retry logic for a new exception: ITunesConnectPotentialServerError (#10083) via Joshua Liebowitz
[add_git_tag] Prevent crash when lane_name is nil (#10080) via Joshua Liebowitz
[spaceship] Fix app review submission failures (#9914) via Pammer Áron
[credentials_manager] Fix typos (#10077) via Lyndsey Ferguson
[docs] Linkify working directory issue (#10058) via Christopher Bowns
[scan] Allow `xctestrun` and `test_without_building` options at the same time (#10064) via Joshua Liebowitz
[set_info_plist_value] Add `output_file_name` option (#9855) via David Cordero
[fastlane] Improve wording of Gemfile information (#10050) via Felix Krause
[fastlane] Update Google API Client version requirement (#10051) via Fernando Saragoça
[spaceship] Do not report submission success if iTunesConnect fails because of Ad ID info error (#10045) via thii
[ensure_xcode_version] Clarify description (#10037) via Jan Piotrowski
[tryouts] Change action to be in "beta" category (#10039) via Jan Piotrowski
[sigh/cert] Update documentation to make it more clear to use `match` (#10034) via Felix Krause

https://github.com/fastlane/fastlane/releases/tag/2.54.0
