support for use_strict

variable appears unused but results in

ReferenceError: flowfile is not defined

when node is invoked with --use_strict
Add configuration of serial protocol settings

- Add support for configuration of protocol parameters (data bits,
party, stop bits)
- Set serial device/port using select list (discovered ports)
- Provide default settings for existing flows that do not yet have
serial protocol settings
Typo
Bump 0.7.2
Import unknown config node breaks layout
Fixes #211
Functional Fix for Inject node
addresses Issue #209
Interval is now wholly timeout based.
Now works on Sundays
Add parser function nodes for XML, JSON and CSV.
Each is dual function - pass in (for example) and get out a js object, pass in a js object and get back out the xml string.
The CSV node must be configured with a column template that specifys the required property names for that column (csv->js), or the properties of the object that should be made into the csv (js->csv)
Merge pull request #207 from fvdpol/master

Add configuration of serial protocol settings (25-serial node)
Tweak layout of serial port config (Thanks Frank)
Generate content-length on HTTP Request node
Add File In node
Remove sentiment tip to be consistent
Make node loading more asynchronouse
Updated credentials storage so there is a .._cred.... file per flow.
Allows swapping flows more easily without having to re-enter credentials.
Thus also added *_cred* to .gitignore
Add new/updated Email node including credentials per node.
Deprecating old IMAP node as now part of this general Email node
Tweaks to email error rmessages
Split up nodes.js into components
Fix localfilesystem_spec
Migrate to new node function style
Minify node .html files before sending