IO Ninja

Fixed:

• Crash on select-word on an empty line
• Lock-down on unplugging Ethernet Tap or I2C/SPI Tap during capture
• Non-selectable merge-boundary in text lines

Scripts changelog:

• ethernet-tap, i2c-spi-tap:
• fix for graceful stop waits forever on IO error

Ninja Scroll engine changelog:

• njs_log: fix: adjust initial offset in selectWord() -- could have caused a crash if selectWord was called beyond the end-of-line
• njs_log: reset CacheTextLine::m_fullLength on merge (caused merge boundaries in text lines to be non-selectable)
• njs_log: assert for proper usage (p < end) in findWordBoundary