Update babel-istanbul to version 0.7.0 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

babel-istanbul just published its new version 0.7.0, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of babel-istanbul – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging :palm_tree:

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The new version differs by 35 commits .

• 95a3ce3 update istanbul
• 2e0e759 Merge pull request #58 from maxkostow/babel_peer_dep
• 6b98051 move babel to peer dep
• f6e1cac 0.6.1
• ad8ab1d Merge pull request #528 from doowb/handlebars
• dd81378 Create new instance of Handlebars.
• 743912d Merge pull request #520 from adamjmcgrath/escodegen-1.8.x
• 048b4b3 Merge pull request #506 from steve-gray/master
• d919f73 0.4.2
• a436d8d Changelog, contributors
• 2f8fe4f Merge pull request #519 from isaacs/master
• 200c448 Update escodegen
• bd518ae cli: Don't throw strings when there are errors
• 8b64df0 Simple test for testing if code parses. Does require that escodegen does not choke on input. Works fine with modified escodegen.
• 5734e2a Added ability to parse MetaProperty for new.target invocation.

There are 35 commits in total. See the full diff.

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