Prepare 1.0.2 release and bump to 1.0.3-SNAPSHOT

v1.0.2 is tagged. Bumping version number to 1.0.3-SNAPSHOT.

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v1.0.2 contains only two bug fix:
 - [SI-7710](https://issues.scala-lang.org/browse/SI-7710) fix memory performance of RegexParsers in jdk7u6+ -- 91584dc
 - [SI-4824](https://issues.scala-lang.org/browse/SI-4824) Fixes stack overflow bug when parsing long multiline comments -- f326847