Bloom v0.8.3

Bug fix release

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Fixes:

• Startup failure due to unnecessary target parameter validation (for Xplained Pro XMEGA board)
  Bloom was performing a sense check at startup, to ensure that the connected target's flash page size did not exceed any maximum memory access size enforced by the EdbgAvr8Interface. This was not necessary for XMEGA and UPDI targets, as we don't use paging for flash memory access on those targets. See #27 for more.
• Awkward minimum window size being applied to the Insight window, upon the enabling of the memory inspection pane, for target package variants with a large pin count (~100 pins)
  When users would select a target package variant with ~100 pins, and then enable the memory inspection pane, Bloom was applying a minimum size to the Insight window, which exceeded the available space on the user's screen. This made the UI very awkward and frustrating. See #29 for more.