Readd explicit error handling to examples

_examples/barchart.go

@@ -9,7 +9,10 @@ package main
 import ui "github.com/gizak/termui"
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	bc := ui.NewBarChart()

_examples/dashboard.go

@@ -14,7 +14,10 @@ import (
 )
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	p := ui.NewPar(":PRESS q TO QUIT DEMO")

_examples/gauge.go

@@ -9,7 +9,10 @@ package main
 import ui "github.com/gizak/termui"
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	g0 := ui.NewGauge()

_examples/grid.go

@@ -14,7 +14,10 @@ import (
 )
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	sinps := (func() []float64 {

_examples/linechart.go

@@ -13,7 +13,10 @@ import (
 )
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	sinps := (func() map[string][]float64 {

_examples/list.go

@@ -9,7 +9,10 @@ package main
 import ui "github.com/gizak/termui"
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	strs := []string{

_examples/mbarchart.go

@@ -9,7 +9,10 @@ package main
 import ui "github.com/gizak/termui"
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	bc := ui.NewMBarChart()

_examples/par.go

@@ -9,7 +9,10 @@ package main
 import ui "github.com/gizak/termui"
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	par0 := ui.NewPar("Borderless Text")

_examples/piechart.go

@@ -12,7 +12,10 @@ import (
 )
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	rand.Seed(time.Now().UTC().UnixNano())

_examples/sparklines.go

@@ -9,7 +9,10 @@ package main
 import ui "github.com/gizak/termui"
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	data := []int{4, 2, 1, 6, 3, 9, 1, 4, 2, 15, 14, 9, 8, 6, 10, 13, 15, 12, 10, 5, 3, 6, 1, 7, 10, 10, 14, 13, 6}

_examples/table.go

@@ -9,7 +9,10 @@ package main
 import ui "github.com/gizak/termui"
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	rows1 := [][]string{

_examples/tabs.go

@@ -12,7 +12,10 @@ import (
 )
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	header := ui.NewPar("Press q to quit, Press j or k to switch tabs")

_examples/theme.go

@@ -14,7 +14,10 @@ import (
 )
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	// Deprecated

_examples/ttop.go

@@ -276,7 +276,10 @@ func main() {
 	if runtime.GOOS != "linux" {
 		panic("Currently works only on Linux")
 	}
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	termWidth := 70

_examples/wrapper.go

@@ -9,7 +9,10 @@ package main
 import ui "github.com/gizak/termui"
 
 func main() {
-	ui.Init()
+	err := ui.Init()
+	if err != nil {
+		panic(err)
+	}
 	defer ui.Close()
 
 	p := ui.NewPar("Press q to QUIT THE DEMO. [There](fg-blue) are other things [that](fg-red) are going to fit in here I think. What do you think? Now is the time for all good [men to](bg-blue) come to the aid of their country. [This is going to be one really really really long line](fg-green) that is going to go together and stuffs and things. Let's see how this thing renders out.\n    Here is a new paragraph and stuffs and things. There should be a tab indent at the beginning of the paragraph. Let's see if that worked as well.")