update version numbers in JS file comment headers to v3.0.1 & regrunt

BS3 commits: 4e0d022de5b0d27b063156533dfcc248fc08257e
Use nesting for .placeholder()

BS3 commits: be60ee1377c3d6ab37f1333443b903975df8f33b
Fix 7398 in Basic template

BS3 commits: 88b651012d5ccefde2088010134079c8eccc6051