LSP4E 0.30.3 released

What's new

• Make overlay icons in various views like the outline view customizable in client plug-ins by @travkin79 in #1521

What's Changed

• Work-around for #1494: Custom default for in-line renaming preference by @travkin79 in #1518
• Provide lsp4j source bundles on p2 update site by @iloveeclipse in #1520
• Remove "initializeResult unexpectedly null after initialization" exception by @rubenporras in #1524

Full Changelog: 0.30.2...0.30.3