ripgrep 0.6.0

This is a new minor version release of ripgrep that includes many bug fixes and a few new features such as --iglob and -x/--line-regexp.

Note that this release increases the minimum supported Rust version from 1.12 to 1.17.

Feature enhancements:

Added or improved file type filtering for BitBake, C++, Cabal, cshtml, Julia, Make, msbuild, QMake, Yocto
FEATURE #163: Add an --iglob flag that is like -g/--glob, but matches globs case insensitively.
FEATURE #520: Add -x/--line-regexp flag, which requires a match to span an entire line.
FEATURE #551, FEATURE #554: ignore: add new matched_path_or_any_parents method.

Bug fixes:

BUG #342: Fix invisible text in some PowerShell environments by changing the default color scheme on Windows.
BUG #413: Release binaries on Unix are now strip'd by default. This decreases binary size by an order of magnitude.
BUG #483: When --quiet is passed, --files should be quiet.
BUG #488: When --vimgrep is passed, --with-filename should be enabled automatically.
BUG #493: Fix another bug in the implementation of the -o/--only-matching flag.
BUG #499: Permit certain flags to override others.
BUG #523: wincolor: Re-fetch Windows console on all calls.
BUG #523: --version now shows enabled compile-time features.
BUG #532, BUG #536, BUG #538, BUG #540, BUG #560, BUG #565: Improve zsh completion.
BUG #578: Enable SIMD for encoding_rs when appropriate.
BUG #580: Fix -w/--word-regexp in the presence of capturing groups.
BUG #581: Document that ripgrep may terminate unexpectedly when searching via memory maps (which can happen using default settings).

Friends of ripgrep:

I'd like to give a big Thank You to @okdana for their recent hard work on ripgrep. This includes new features like --line-regexp, heroic effort on zsh auto-completion and thinking through some thorny argv issues with me.

I'd also like to thank @ericbn for their work on improving ripgrep's argv parsing by allowing some flags to override others.

Thanks @okdana and @ericbn!