Merge branch 'alpha'

packages/uni-template-compiler/lib/mp.js

@@ -110,7 +110,7 @@ const tags = {
     'open-container',
     'share-element',
     'snapshot',
-    'span',
+    // 'span', // todo: 临时移除 span 的支持，后续判断 skyline 环境进行区分 ask 190418
     'sticky-header',
     'sticky-section'
   ],

packages/webpack-uni-pages-loader/package.json

@@ -21,7 +21,7 @@
     "strip-json-comments": "^2.0.1"
   },
   "uni-app": {
-    "compilerVersion": "4.14"
+    "compilerVersion": "4.15"
   },
   "gitHead": "4a974e44466ae58194372e446299cf83c7a3ad2c"
 }