Delete some deps

5 commits to master since last release

• set to true while time decode time with empty string. see #55
• [*] standardize & document the calling convention
• [*] minor change to clis.WarnOn(), make it a function

Reason for drafting a new release:

• 21 commits to master since last release, so drafting a new one
• Need the github.com/mkideal/cli/clis and github.com/mkideal/cli/clil in the release.

• Fix: Fix some bugs.
• Del: Remove extra package now.
• Add: Adds UsageFn for customizing usage.
• Mod: Replaces NeedArgs with NumArg.

v0.0.1 (2016-05-21)

Initializes the repository, and implements many important features.

• Add: Prases flags base on golang tag.
• Add: Supports almost all basic types, slice and map as a flag.
• Add: Fuzzy matching for suggestion.
• Add: Supports command tree.
• Add: Pretty output for usage of command.
• Add: Supports any type which implement cli.Decoder as a flag.
• Add: Parser for flag.
• Add: Supports editor like git commit.