double clone bug

The previous statement already cloned the fragment
strip newline at end
Merge pull request #267 from dyu/dev

double clone bug
fix #253 attribute names with colons
Small performance fixes

According to the discussion in #262
Merge pull request #271 from bpierre/perf-fixes

Performance fixes
address #278 v-style with important priority
fix #276 and #281 child vms removed before parent transition finishes
give v-with higest priority among normal directives (fix #282)
update dev dependencies
fix #288 v-with misbehaving with $watch
fix #284 lazy option not inherited
address #290 v-on on iframes
make methods react to changes
Release-v0.10.5
Merge remote-tracking branch 'upstream/master' into xdev