0.8.2
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* Support CARGO_HOME environment variable
0.8.1
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* Only create tags for module definitions
0.8.0
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* Build tags for rust standard library
* Support 'rustup' beta
* Remove tags creation for 'impl'
* Only create tags for files under 'src' directory
0.7.0
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* Now really handle empty 'dependencies' in 'Cargo.toml'
0.6.8
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* Add '--start-dir' option
0.6.6
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* Support dev/build dependencies
* More complete support of dependency definitions in 'Cargo.toml'
0.6.5
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* Add '--verbose' and '--quiet' options
0.6.4
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* Add option --force-recreate
* Support first level local path dependencies
0.6.2
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* Determine rusty-tags and cargo directories only once
0.6.1
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* Handle empty 'dependencies' entry in 'Cargo.toml'
0.6.0
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* Support multirust