v0.4

Changelog

61f0801 Add ammend commit action.
190309e Check if there is any commit to amend and use 'A' instead of 'M' as shortcut.
4287f8a Fix tests and add test scenarios for amend.
0d33a74 Merge branch 'feature/informative-commit-colors' of https://github.com/jesseduffield/lazygit into feature/informative-commit-colors
e9245cd Merge branch 'master' into add-tests-part-7
ac65586 Merge branch 'master' into feature/commit-amend
7164f37 Merge branch 'master' into feature/commit-amend
8fac19c Merge branch 'master' into feature/informative-commit-colors
17d7bcd Merge branch 'master' into feature/informative-commit-colors
b6b21bc Merge branch 'master' of git://github.com/jesseduffield/lazygit into feature/commit-amend
7fb2caf Merge pull request #279 from jesseduffield/hotfix/file-ordering
d5f6460 Merge pull request #283 from kristijanhusak/feature/commit-amend
b8b59ba Merge pull request #290 from jesseduffield/feature/informative-commit-colors
d0a3f1e Merge pull request #291 from antham/add-tests-part-7
5f7ac97 Refresh side panels and use uppercase HEAD in all git commands that requires it.
28fe3d6 Use confirmation popup for amending last commit.
a2b3cd0 add removeAll to git
eb69d98 add test for CurrentBranchName
fb9596a add test for getMergeBase
c789bba color merged and unmerged commits differently
9481920 commands/git : add test to GetLog
360b7c1 commands/git : refactor test to Diff, refactor function
bdeb78c commands/git : returns an error instead of panicing
2be6136 more test coverage
f3fc98a support git flow when colouring commits