Another iteration on `ec ls` command and internal changes

v0.0.15

Release v0.0.15

Improve yarn installation

Ref #58

Fix `ec ls` duplicating issue

Ref #57

Node and overall DX improvements, plus major bug fixes

• Correctly re-apply global modules for node

• Install yarn during the node installation

• Show only 10 latest versions for ls command

• Pass exit codes from proxy to the user

• Improve rollback mechanism

• Allow mask use in dots files

• Improve error output

• Implement latest keyword

• Simplify shell restart logic

Improve shell handling

v0.0.11

Release v0.0.11

Bunch of small fixes for ruby, shell and print logic

v0.0.10

Release v0.0.10

Add python and elm support, stabilize and refactor

v0.0.9

Release v0.0.9

Add support for zsh

v0.0.8

Release v0.0.8

Fix small inconsistencies and clean-up

v0.0.7

Release v0.0.7

Start shell (if needed) at right sequence step

v0.0.6

Release v0.0.6