1.0 RC1 - Keren Ann

First public release candidate of Liquigraph!
In a nutshell:

• [#5] Introduce Maven plugin and script.
• [#12] Add DryRunMode/RunMode support
• [#9] Allow nested preconditions.
• [#3] Introduce precondition
• [#4] Introduce runOnChange & runAlways.
• [#2] Introduce execution contexts
• [#1] Implement changelog and changesets.

Thanks @mgazanayi for his important contribution.
Same goes to @jexp and @ericbottard for their invaluable advice.

Special thanks to @bdoughan for his availability (and his JAXB knowledge!).

And finally, huge thanks to @nvoxland for the creation of Liquibase.
Without him, Liquigraph wouldn't be!