COP Template for FlexViewer 3.4 V1.4

Changes in ERGChemical widget for new 10.2 GP service
V1.5 - COP Template for FV3.4 - Incorporated line and arc symbology in ERG Chemical

1. Incorporated line and arc symbology in ERG Chemical widget
2. Replaced URLs for nearest weather station and METAR services
V1.5 - COP Template for FV3.4 - Incorporated line and arc symbology
Updated README's copyright
Merge branch 'CT_V1.5'