smartArt support; cleanup effects helper; placeholder matching

• fix(text): fix internal links; refactor tests; fixes #180 c2c0a01
• Merge pull request #182 from kirkeskov/feat/multitext-inline-hyperlink-html 289c459
• fix(multitext): added support for <a> tags d978e20
• chore(multitext): add superscript/subscript 15e43ab
• fix(shape): restore behaviour for adding / modifying a shape more than once on a slide 01071f3
• chore: minor fixes; get shapeHasBackground info 9cb21c5
• fix(shape): revert callback order for multi modified shapes d41e61c
• refactor(doc): remove outdated html docs 987b713
• fix(shape): fix replaceInto selector creationId 7855a23
• chore: simplify placeholder matching; fix replaceInto selector for multiple equal shape names 36f65a0
• refactor(shape): separate cleanup helper; improve visual type recognition 36a2407
• refactor(master): enhanced placeholder matching for layout merge mode; allow multi modifyElement calls 8fec90e
• chore(all): improve type recognition; more robust multi relations; placeholder assignment 4a67c00
• test(all): use all shape types combined on one slide c4f7fff
• fix(diagram): diagram recognition on slide b8353ac
• feat(diagram): basic handler for diagrams (aka smartart) 728cf3c
• feat(shape): remove ugly effects helper 469c4a9
• feat(layout): improved placeholder matching if old and new layout gets merged 1d915d7
• chore(slide): select shapes without creationId by name and nameIdx 6ea681d
• chore(slide): improve placeholder handling 98ee1ca
• feat(shape): removeBackground modifier b601d93
• chore(ph): improve placeholder matching in merge mode 8967a4a
• feat(image): add rounded corners with fixed radius (disregarding image size) e4d0dff
• fix(slide): disable multi-modification for shapes w/o creationId d616dbe
• feat(master): use mergeIntoSlideLayout to auto-apply a new slide layout to an old one (WIP!) c5d6282
• chore(slide): add a14:imgLayer to unsupportedTags / remove parent after truncating children 87a62af
• chore(slide): add getGroupInfo to ElementInfo to show if a shape is grouped or not 5320f4c
• chore(shape): Create transformation elements if missing on position update 5b0536b

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v0.7.4...v0.8.0