Reduced duplicated code when creating tabs for interface.
Rearranged parameter order

Rearranged parameter order for MainActivity#addTab for readability.
re-add BTCChina and Bitcurex tabs
Fix incorrect Bitstamp alarm pairs
BTC Guild mining pool support
clean up MinerStats

- improve adding tabs to actionBar
- improve keylength checking
- warn user of 15 second refresh limit on BTC Guild
Karma-Ads integration (commented out)

-  Minor adjustments to ease adding Ads  when building ad-supported
build
-  Added code that can simply be uncommented to enable Karma-Ads
pre-emptive Kraken exchange support
fix proguard cfg and re-enable
Purge ChinaCoin (CNC) from BTC-e
Add missing Bitcurex notif. ticker

+ organize minerStatsActivity imports
update to 1.7.1
Merge remote-tracking branch 'origin/develop'