fix content assist autoopen problem on firefox

on firefox the innerText property can be undefined.
On chrome, it is always a number.
Add TODO for enhanced-resolve library to make plugable fs.
More plugable fs related refactoring
Merge branch 'master' into pluggable-fs
More plugable fs
Fix a bug causing jsdepend.getDGraph to occasionally drop a callback... causing 'pending' network connections.
Merge branch 'master' into pluggable-fs
Allow sub-directory filesystem to be configured with specific userHome and scriptedHome directories.
Debugging code.